From Asia's Best Selling Maths Monthly WV KNOW YOUR Say es ed ya) ta) Comprehensive theory with examples sment chart piads / Talent Search Exams Other OlymCO Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 : Lines, Angles, Polygons and Symmetry Chapter 8: Perimeter and Area ... Chapter 9: NTENTS : Number Sense : Computation Operations : Factors and Multiples : Fractions : Length, Weight and Capacity ............ : Time and Money .... Data Handling : Know Your Aptitude. PLANATIONS aG) —— =z > ne piace value and Face value The child will learn: abacus ames © Place value and Face value s Nun tor and Short form { . ‘of nucrbers > Abacus : eat Frgescendi0® c+ Number names posed git nuenbe a + fo os <> Expanded form and Short form ane without ey Estimation eres ¢ PLACE VALUE AND FACE VALUE 3 Rome Number = 38154 Period Thousands : Ones Place Ten thousands Thousands Hundreds Elise ‘Ones Digit 3 8 1 5 4 Place value 30000 8000 700 50, 4 Face value 2, 8 Mi 1 5 4 i ABACUS mn.on the abacus as:NUMBER NAMES Tth = Th Koa 4 3 8 1 32. Day Fo ta, ai Number name of the lac tow ma ae ast Rone ay ? three digits together sands? ~ ____-» Thirty eight thousand ie one hundred and fifty four — — thousand one hundred and fifty four 38154 = Thirty eight EXPANDED FORM AND SHORT FORM 58154 = 20000 + 8000 + 100 + 50 + 4, Short form Expanded form LEARN (1.1) FAST 1 In 65207, the digit 2 is at the place. B, Rundred: A tens 2. 50908 = 50 thousands + tens + 8 ones. Ag B90 ee a 3. The numeral for eighty five thousand eight hundred and fifty is A 8585 BB 4. Which of the following statements is CORRECT? 2+ 7043 Know Your!6. Face value of 8 in 68743 is A 8 Bat C, B00 f 7. Which number does the place value of model shows? A ii B73 c oR 5. 7a A. iG lakhs 8. 160 i ‘thousands DT thousand 9, Select the odd one out. & Coe » =e 10. Mohit was solving a Mathematics question. He calculated that there are eighty thousand four hundred seconds in a day. Help him to write this number in six numeral form? ¢, 86400 Db 86404 A, 80064 6B numbers descending order and without repetition of digits it numbers with7 COMPARISON OF NUMBERS ae wil, Say, ompare Compare ASCENDING AND DESCENDING ORDER Arranging the numbers 98413, 99642, 9821 and 89900 from the smallest tothe larg, or in increasing or in ascending order. was L B OG 429642, Arranging the numbers 55345, 4553, 55543 and 55053 from the largest to the smallest or in decreasing or in descending order. FORMING 5-DIGIT NUMBERS WITH AND WITHOUT REPETITION OF DIGITS Consider the digits 5, 3, 9, 8 and 7 Without Repetition With Repetition Smallest Number 35789 33333 Greatest Number 98753 99999 When ‘0’ is one of the digits Without Repetition With Repetition 20000 99999 Know Your IQNote: (i) Digit ‘0’ cannot be repeated to get th z greatest number peated to get the largest number as'9’ is repeated for the (ii) Digit ‘0" cannot take the first place in th 3 number number ie. 02359 is a 4-digit LEARN (1.2 } FAST i. The descending order of 12345, 31245, 21345, $4321, 53421is oO 8 5 12. Which number should NOT be placed in the box to have the numbers in order from the least to the greatest? eS ns | A, 68985 13. Arrange the digits 3, 6, 2and 9 to form the smallest 4-digit evennumber without repeating digits. A 2369 fa) Avfange the digits 8/4, 0, 9 2nd 3 to form the greatest 5-digit odd number without repeating digits. A 98043 4 thousands 8 ten thousandsving numbers written on them. He has to pig hhoose the option which shows! tition). ‘ 16, Mohit is playing with three cards h the cards in order to make a 3-digit number. C the possible combinations of cards (without repe Oe Dp. 145, 154, 451. 941, 514, 41 54, 541, 514, 511, 145, 155, A. 145, 541, 415, 514, 451 541, 515, 451, 415, 154, 145, digits 1, 2, 4 ‘ 17. The smallest 5-digit number that can be formed from dig and 8 using each digit at least once is_- A. 12481 8 12488 c eae : 4 s arranged in ascending order? 900, 14895. 14890 106, 18 18. Which of the following sets of numbers ! ngs A. 12054, 12057, 12060, 12063 B. pints C. 16123, 16129, 16117, 1611 0. 8, 19. Form the smallest 5-digit odd number using digits 5, 4, 3, 1 and 6 without repeating the digits. A 13456 B. 20. Ihave 8 in the tens place. | have 2 in the ones greater than 900. Who am |? 13465 C 4365 i place. | am less than 1000 but * a The child will lear => Estimation = Roman numerals upto 1000. ESTIMATION Estimated values are rounding off numbers to the nearest tens, hundreds and thousands. Consider the number 45927 45927 T__ Rounding digit (when rounding to the nearest tens) = 45930 ing digit (when rounding to the nearest hundreds) = 45900 it (when rounding to the nearest thousands) = 46000 ligit is greater than or equal to’S’, then number is rounded jousands. Wwe Lo os 1_ [5 | 10 [50 | 100 | s00 | 1000 Know Your !@,Rules to form Roman numbers ; 7 Repeating a letter means a } addition. Remember Remember we The letters can Wel+141< 3, S ; ion be repeated XXX = 10 +10 + 10 = 30. regenes upto three CC = 100 +100 = 200 ete asa av If one or more letters are placed after a letter of bigger value, it means Wd addition. A Vi=5+1=6 (Vhas bigger value than |) Remember ican be Ifa letter is placed before a letter of Soccer i) Vand X only. V, L 8 bigger value, it means subtraction and Dare never My Ve =4,1X=10-1=9, subtracted. XL = 50 - 10 = 40 ete When a Roman numeral of si all value is placed between two numerals of greater value, it the numeral on its right X 1V=[i0 + (S53) 14 XXX IX= 10410 + 10 + (10-1) = 39 21. Some Roman numerals are given below. Put the sign ‘>, < or =’ respectively to fill the boxes. P. LIV XCIX XLVI xcV PP=Q.-oR pi rest 100, the population of Goa was 383400. Which of the uld be the actual population of Goa? B. 383295 c. 383364 D. 384489Direction (23 and 24) : Consider the rate lis fol 23. 24. 4 26, 27. 28. 29, 1 of few items given below and an, lowing questions. oe a e [ Notebook Bag Pencil box ___Paper clip __ is the costliest item and is the cheapest item respecg amongst all. z A Noteb« per clip. pe C Peneil box, bag c is costlier than by 719. A Notebook, sensi box 5 Bag, notebook €. Pencil box, paper clio D. book, parer clip Which of the following statements is INCORRECT? P. 6380 is equal to 6400 when rounded off to the nearest hundreds, Q. The Roman number CCXLV is written as 265 in the Hindu-Arabic numeral: R. Smallest 4-digit number that can be formed by using the digits 3, 5, 8 a ‘0 is 0358. A Only P B Both FandQ ¢ Both Q and R S ALP. Which of the following statements is INCORRECT? AV Land D ce subzacted while writing Roman numerals = acted fram aed X only €. from L. () Which of the following statements is CORRECT? asic Symons 7 the Bam B (oF greater value 's written to smaller value 1s added ta the larger value € a symbol of smaller values wirtten to the rant of a symbol tr ‘om the larger value, D. Wis never writes on the right of X Roman numeral equivalent to 89 is AL LXiL Bo CXIX cK Which of the following is TRUE? eerent 1: 128 rounded off to the nearest tens gives 130. ment 2 : 5329 rounded off to the fearest hundreds giv A. Only statement 1 € Both i 8 Only statement 2 eb ststement and statement? - Netheraetemen30, Select the CORRECT match. XXIV=E2K5 veces B CDi= 40) fe anes Max. Time - 10 mins, ‘ _Test Your 1Q_ Max. Marks -10 Complete the crossword using clues given below it u Kiv) (viniy [iy Td 1 (vy) (a tip} ! (vii) (x) LL | al Across: Down: (i) Five thousand six hundred ninety (ii) Smaller between 278 (iii), Short form of 8000 +600 +90+3 iv) 9 thousands + (v)_ Hindu Arabic numeral for DCXXX! (vi) Numeral for (vii) The place value of 4 in 84695 four hundred, (x) Estimate 52369 to the nearest (viii) Eighty six than thousands (ix) The greatest formed by (ae Your Score :( ) Ne eet eae “After attempting the test, know ‘your Mental Age (MA) from the table given and calculate your 10; Score (ono Your 19 = 24 x 100Computation Operations The child will learn: . eae j & Addition of 5 and 6-digit numbers without + Multiplication and with regrouping Division © Identify the missing digits © Properties af Addition & Estimating the sum w ADDITION OF 5S AND 6-DIGIT NUMBERS WITHOUT AND WITH REGROUPING Add 42376 and 30612. : Add 32438 and 57687. TTh ThH TO ! Th ThH TO Ws 7 8 : @© OOO ee ‘ Bed 88, eee ee ia 5 7687 Hence, 42376 + 30612 = 72988 ‘ 9 __ ORES ! Hence, 32438 +'57687 = 90125 Note : Do the same for é-digit numbers, IDENTIFY THE MISSING DIGITS Find the missing digits in the following addition, L TTh Th H To Poet 2[ ) + 2.4 Te} ee 98 7 737 ne sum of 4395 and 4568 when rounded off tothe nearest iy st hundreds is 3963 8 9063 900 D900 inthe given sum, the same number is missing in each box, Wh, fat is the missin a number? pound off the sum of 706 and 43962 to the nearest hundreds, B. 44670 4470( - 1O+@+O+O@+OrE iS) Select the CORRECT match. 48 B XX + XVI = 47 ow A XIV + XXXVI= 66 BD. LX +CD=460 C XXXV + XXIV = 6 There were 4829 boys and 6423 girls ina school. How many total students are there in the school? 225 c nse dD. 1is2 A MNe52 B. There are eight thousand forty eight schools in city A and five thousand six hundred and two schools in city B. Which abacus shows the total number of schools in both the cities?“Note : (i) Difference + Subtrahend = Minuena i {ii) Minuend ~ Difference = Subtrahend PROPERTIES OF SUBTRACTION if 0 is subtracted From any number the difference is the number itself Predecessor of 98003 A. If 10, 100 and 1000 are subtracted from a number, then digit at tens, hundreds and thousands place are respectively decreased by 1.PROPERTIES OF MULTIPLICATION 1. The product of 1 with any number is the number itself. If three or more numbers are multiplied together, then the even if they can be grouped in any order. Product will Femain sa, 5 a TOKE 3 6. Multiplication of a number by 10, 100 . i Z and | val n times and 1000 times bigger respectively 000 makes the product 10 times, 10025. Find the missing number. 46 x 83 = 46 x [21+ 46 x3 Cao: A. al Bese F % 26. Which of the following is NOT equal to 48 x 74 ? pR' A, 40% 7448x% 74 B. 48%70x4 a C. 48x 70+ 48x 4 Dd. 46 «744274 27. Abaker sold 198 loaves of bread last month. He sold 3 times ag many month than the last month. How many loaves of bread did he seil this 1 A. 504 B. 954 c Ag D. gg, on, 28. Mr Tarun earns < 272 in a day. How much does he earn in 4 weeks> AL 37716 B. 7616 Cie rons: D tim 29. lam thinking of a number. If | multiply the number by 85, then add 197 ands, subtract 22, the result is 3735. Which number I am thinking of ? x A 42 BS c 48 Deas The child will learn: = _ Division upto 5-digit numbers by 1-digit and 2-digit numbers = Properties of Division => Estimating the quotient => Unitary Method DIVISION OF 5-DIGIT NUMBERS BY Divide 78913 by 5 SV7897 3115782 -54 28 Se 39 ‘ t i -35 i 1 ‘ ' ; : ‘AND 2-DIGIT NUMBERS Divide 54384 by if 4i 40 low 1 eA aes_pROPERTIES OF DIVISION | When a number is divided by 1. the quotient is the nu , Iber (dividend) itsel : if. amin Gem . | Same errata Divisio >. When zero is divided by any number, the quotient ig 2 Hb ony ero. defined. 3, When a number is divided by itself, the quotient is 1 ! ESTIMATING THE QUOTIENT Estimate : 242 + 22 Actual quotient = 11 [caret] [casea Actual Estimated Actual Estimated numbers numbers numbers numbers 242 = 200 (nearest hundreds) 22: —— > 20 (nearest tens] Estimated quotient = 10 242 —> 240 (nearest tens) 22 ae 20 (nearest tens) | Estimated quotient = 12 UNITARY METHOD If the total cost of flowers in the given vase is % 2304, then what is the cost of 18 such flowers? Total flowers in is 9.-S \ 50, cost of Iflower = % 256 Ra eo) ee Cost of 9 flowers = 2304 | Now, cost of 18 such flowers = Cost of I flower = %(2304+9) 9f230 A256 “ie 35: | Hence, cost of 18 such flowers is & ago a TEARN ( 2.4 ) FAST a i) © 30. If an Bh ae: -_ =1927, then the value vane GE — A. 1225 How many times 40 must be added to itself to get 20000? =4365and 31. A. 10000 B, 8000 €. 4000 D. 500 32. Amit was asked to verify the answer of the given problem. What expression should he use to obtain the dividend again? 2686 73188071 Remainder = 5 A 2686x7+5 8B 2686+5+7 C. 7ageseueg |B 7x5 42686 33. Find the value of (P-Q4R)+S, ipo =38 B 4 349 -3Q2 75 A 6then how many apples ean acked equally into 7 POxe® 38. if 8631 apples are P i 2 packed in 25 such boxes! nl : A 13208 B 30852 ¢ 80) D. 30825 39, 965432 is divided by to get quotient and remainder as 21454. : i respectively: 2 A 54 B 45 Ges ees 40. State ‘T’ for true and ‘F’ for false. (a) 0+5210=0 (b) 3967 + 3967 =0 4 {c) 10002 + 2 = 5001 (a) If dividend = 22336 and divisor = 32, then quotient = 698 and remainder=9 2. (a) (b) {c) (a) AF : 4 x : BF | 5 fs 4 G7 : i pT = a a © ) ‘Max, Time - 10 mins. oy Test Your 10 Max. Marks- 19 eee irection (1-10) : Some families liv’ lonate some items to an D : Some fi ing in a society decided to di orphanage. Consider the pictures showing the contributions of various famili id fies an answer the following questions. Mini donated @ 12060, some bedsheets and veda ne Dens an donated cashef donates 17000 %29000 for food and school bot a clothes. Sai5. Me Gupta and her friends Pease ated a fund of € 50000 Ya donated some toys and gener : cash of € 59000, amount donated by Priya was used to buy 295 toys. If the cost of each toy The ie same, then what is the cost of each toy? a € 20 B. %500 © %300 De Total amount donated by Mini, Ms Gupta and her friends was t 060 B. 6240 Cc. 60020 ) : 0 t 0 The total amount donated by all the given persons was 7 B. 176006 C. 167066 167096 A, 167060 if Mini's friend Sakshi also donated % 5683 to the orphanage, then find the total amount collected. A. 172473 B. 72772 c 172743 D. 172433 Shikha’s mother donated half of the amount donated by Mini. So, amount donated by Shikha’s mother oS A. 6030 B. 6033 c. 6000 D. 3060 give a cash prize of % 5000 to child who will find the values of Priya decided to ectively by reading the clues and ‘solve the puzzle. P,Q, R and S respThousands place digit 5, Thes a. ESTIMATING THE SUM earn 6. inth S| Estimate the two numbers first and then find the su num! A a c 7, Re A a. if b LEARN FAST ou 7645 more than is 23890. A. 15265 B 30535 C6245 D. 31535 10. Which of the following has the least value? A, 10 tens more than 20 hundreds 8. 10-ones more than 200 tens OS °. Wones more than 20 thousands Th Calculate the sum of the dit wats at the handel OM eevaESe etna llest and the & o 2698, We eee B15 c What should be added to 1099 to make 109 9900 B 20999 largest numbers given beloL Th Th H TO 3 6 [41 2[9] eS a(te]s 3 Be 9 6 7 7 3 PROPERTIES OF ADDITION 1, Changing the order of the two addends does not chy S NOt change the 5 © the sum, 2 If three or more numbers are added, then thei i vein ‘order of grouping is changed, sum will remains same, even if same, even if the 3. The sum of zero and a number is the number itself Gee Same 4, Addition of 1 to. a number gives the successor of the number cote - ein Successor of 97793 0, 100 and 1000 to a number increases the digit at ten 5, Addition of 1 \s, hundreds and thousands place respectively by |PRIME AND COMPOSITE NUMBERS Prime Numbers Composite nu, Mbers The numbers which have only two The numbers which have Tore factors, 1 and the number itself factors are called composite ume are called prime numbers. " Note: we cal (1) Tis the only number with one factor, which is neither Prime nor Composite, 4 1 (i) Smallest prime and only even prime number is 2 eT (1) Smallest composite number is 4 TWIN PRIME NUMBERS When difference of two prime numbers is 2, they are called twin primes Luce 13 — 11 = 2, so Nand 13 are twin primes. Find CO-PRIME NUMBERS Fact When two numbers have only 1 as @ common factor, they are called co-primes, Fact 8 and 15 have only 1s a common factor. So, 8 PRIME FACTORISATION Let's factorise 18, There are 4 ways to write 18, 18 =18 x1 18 =2x9 {18=3x6 [18 is not prime} and 15 are co-primes, (18 =2%3%3 {19 is not prime} | [Gis not prime] | TAU the factors are prime! So, prime factorisation of 18 is2x3x 3, PRIME FACTORIS, ATION BY FACTOR TREE Consider factor tree of 48.PRIME AND COMPOSITE NUMBERS Prime Numbers Composite Numbers The numbers which have only two The numbers which have factors, | and the number itself factors are called compos are called prime numbers Note : (i) (ii) Nis the only number with one factor, which is neither prime n Smallest prime and only even prime number is 2. = (ni) Smallest composite number is 4 OF Composite, oO a TWIN PRIME NUMBERS : 3 When difference of two prime numbers is 2, they are called twin primes, Mich 13-11 =2,s0 Nand 13 are twin primes. Find CO-PRIME NUMBERS Fact When two numbers have only 1 2s a common factor, they are called Co-primes, Fact 8 and 15 have only 1as a common factor. So, 8 and 15 are co-primes, Com PRIME FACTORISATION Let's factorise 18, There are 4 ways to write 18. 18=18 x1 MeSex9. [1B =3%6 (8 =2%3x3 116 is not Prime] | [All the factors are prim) So, prime factorisation of 18 is 2 x3 x 3 i ; PRIME FACTORISATION BY FACTOR TREE Consider factor tree of 48, {Bis not prime)! 19 is not prime]tors of 54? 4, Which of the following are eae 3 tee 2 mmmon factor of 21 and 45? 5. Which of the pouera ps iH a common a ie 6. What are the common factors ‘of 10 and 15? aS. Biss B and ¢ Vand 3 D 2aae 7. Which of the following is the greatest I-digit number that has 4 factors> q A 8 8 cS) D9 = q & Which of the following are factors of 100? F A. Sand8 B 4and5 C D. 4andg : 9. is neither prime nor composite. | B c 3 D. 10 10. is the smallest composite number. Pp A B 2 c 3 D4 Which of the following shows the correct factor tree of 24? 2 6 2 #8 & oo a * © QO. Sd 6 ® : 6 12, HCF of 70 and 105 is ' 37 B : Fe B. ve 13. Fill in the blanks. , is the smallest odd prime number. fi) A i ; number having more than factors is called composite number. (iii) A number having factors 2 and 3 have also as a factor. r af (ii) (iii) Be 2 : DO 7 i 6 \ Know Your‘one of the factor of the numbe, a descending order is formed after a iw 3 ‘ 7 Which of the following is a common factor of Diss 4 8, 36 and : 847 15. i's Bo4 ow 9 0 Snaing the digits 2,5 and 3 the child will learn : Multiples Properties of multiples Common multiples Least Common Multiple (LCM) Divisibility Rules SULVGG MULTIPLES Find product of 32 and 7. 32x72 = 224 Factors Multiple or Product So, 224 is a multiple of 32 as well as 7. PROPERTIES OF MULTIPLES 1, Every number is a multiple of itself. 2. Smallest multiple of a number is the number itself. 3, There is no largest multiple of a number. 4, Every number is a multiple of 1. COMMON MULTIPLES Observe the following figures carefully. Multiples of 5 Multiples of 4 Multiples of 2 | Class 4We can say that |. 4, 8,12, 16 and 20 are the common multiples of 2 and 4 2. 20 is the common multiple of 2, 4 and 5. LEAST COMMON MULTIPLE (LCM) Find LCM of 6 and 9. e 2 ). 42, 48, Multiples of 6 less than 60 are 6, 12, (@). 24. 30, 68. &. ) 45, 6 Multiples of 9 less than 60 are 9, (@), 27, 68, 45, 64. Common multiples are 18, 36 and 54 - Least common multiple of 6 and 9 is DIVISIBILITY RULES si [_ Divisible by Rule Example) | 2 The digit at ones place is even 642 's divisible by > | (0,2, 46,8) 423 is not divisible bya r Biel The surnofdigitsofthenumberis | |3735% divisible by} | divisible by 3 because 37 43am | is divisible by 3, fc S The digit at ones place is either 0 or 5. | 2895 is divisible bys. [ 2670 is divisible bys, { 10 [The digit at ones place is 0. 7640 is divisible by 19, 16. The common factors of 40 and 96 which are also multiples of 4 are A. 4,8, 12,16 B 4.8 cS 14.8 D. 1,4, 40,96 17. How many multiples of 10 are there from 20 to 150? A 13 8 14 Cais Donate 18, Which of the following is the fourth multiple of 12? A. 24 8. 48 ona me 19. Which of the following Statements i is INCO BEV Dumber 's 2 mitts of RRECT? B. Every multiple of a umber jg S great a CG The greatest mutiple of g ®r than oF equal te the number, 0. Number of multipies oy «1! MUMBer is the Number itself. * er any number Fe infinite, Us (EXE3 Know YouIll. have total of 8 factors. 26. Which of the following numbers is divisible by 107 14869 5 1597 ar a 4 27. Which of the following statements is true? |. 46612 is divisible by 2. FI ll, 42350 is divisible by both 3 and S. t A. Onlyt B Only Il Both | and II Net ne 28. Least common multiple of 4, 6 and 9 is A ae cmeeia ( ale 29. lam an even multiple of 15 between 80 and 130, Who am |? Bo -60 eae a. A 105 30. Identify the number. (i) The number is the predecessor of an even number which j ‘ich but less than 100. oe 4 (ii) Number is a multiple of 3. (iii) Number is not a multiple of 11, (iv) Sum of the digits of the number is even, Ga B 99 a, —. Ifdigitatones placeis_ Bx ime 10mins ction (1-10) : Solve the questions given below ci of letters. - nd find the aah paeonesa = | V NJK{M |] M Zale TH valeeeleeson | A lH yeep F Tw Soe | xo cr] Gimemcsen TT xu ly EL) Waeemmemeel ss | x lc ior y NM 6] Fy PON OR Pe pepe Sameer wEsNo Wee ete 9 teal ey poe ee aepeFe PR To LNao la AlYV pyre ty eT LT eToty is i : pene | Q Oo =) Ss La Wiese oO a RawemieOl| De) B | D | 1 | S| opxijeraee a is a factor of every number. Total number of factors of 60 are Nisa number (prime / composite}, 20" multiple of 5 is There are multiples of 10 from 11 to 195. Greatest factorof9is i. Smallest composite number is . HCF of 7, 14 and 21 is _ F LCM of 4, 8 and 16 is ; , then the number is divisible by 10. @ re 8 Your Chronological Age (CA) i.e. a 10 Your Age: ra cual la ean Aue ) After attempting the test, know a ‘Mental Age (MA) from the table ia fen and calculate your 1Q: Your 19 =p x 100 a) 1 senneannnmnnntt Pa ae p) Lowa_ factors of 48 are 2 and 3 prime prime factorisation of 48 is2x2x%2x25 3 coMMON FACTORS opserve the following figures carefully Me Factors of 15 Factors of 17 Factors of 20 we can say that 1 land 5 are the common factors of 15 and 20 2, Thereisno common factor of 15 and 17 e: a xcept |. Similarly, there is no common factor of 17 and 20 except 1 3. lis the only common factor of 15, 17 and 20. HIGHEST COMMON FACTOR (HCF) Find HCF of 15 and 20. Factors of 15 are 1, 3. 5 and 15. Factors of 20 are 1, 2.4, 5, 10 and 20. of 15 and 20 are Vand 5. Factors of 15 Factors of 20 Common factors Highest common factor of 15 and 20 1s 5. Common factors of E 15 and 20 1 72has factors. ; A 10 iB. 4 Co cane , Which of the following is @ factor of 36? st A. 27 cay 5 G& #2 0. 3, Smallest factor of any number is _—— ~ 1 A. Numberitself B 9 . _ 33 MATH | Class 420, Product of the second multiple of 12 by the oa 24, 25. A 48 8 192 third multiple of a i 96 Fill in the blanks. Afactor of anumber is__P greater 4, tl number is__Q__odd. listhe oR Bae number: A multiple of an even oa lumber, R P Q , mes never P = factor B neve ve ae Cc. always always - oy Multiple D. never always multiple State ‘T’ for true and ‘F’ for false, |. Twonumbers which have only 1ascom w mon fact . Mocs factor are called. co-prime numbers. Ul. LCM of two prime numbers is always their product, IV. The LCM of any two or more numbers cannot be less than any one of them. ' i NI iW AF T a e BT F F + et, ri Ti De Th ce is Misha bought following books from the market having price written below them. The price of which book is a multiple of 3? Science Olympiad 3432 3368 B. English Olympiad Maths Olympiad €. Computer Olympiad D. Science Olympiad Which of the following numbers is not divisible by 3? ss Ap A272 B. 68514 & 907122 D. 2825 Which number am |? |. lama 2-digit even number. tiple of 6 and 7. I. Lam acommon multip! oe MATH | Class 4——_ — ae ~m™~ © The child will learn : © Types of fractions > Conversion of mixed fractions into improper fractions and vice-versa TYPES OF FRACTIONS (i) (iii) (~ Improper é Fractions 35 (b) (c) (d) 666666 From the given oe a a em a), (d) (9)CONVERSION OF MIXED FRACTIONS into yice-VERSA IMPROPER FRACTIONS AND 7 eonvert — into mixed fraction, i Con 4 i Convert i into improper fract 5 proper fraction 1<— Quotient (Q) pivisor (0) —» 4171 34 = BX5)42 17 4 3 « Remainder (R) 64.1 1. Which of the following figure shows > part unshaded? 4 >: @°E 2. Match the missing numbers in Column A with numbers in Column B. Column A Column B. fa) 5 -U ” 31 9 to) 61H (2) 33 8 8 =o foal a) 41 {c) 88 3_U (a) 49 a 43-4 A {abil (b)—12), (¢) 913). (d) 914) B Lal—vl4), (b}-12), (c) (0), (G13) Selah id (b)-13). (e)—9(2), (d)-all) (b)—914), (c)—+(2), (d}-a()3. Which of the following is INCORRECT? 1647 1445 c ==) t 1 By 1 = € 9 Dat ees) B 3 9 3 ese A 8 44 4, Which of the following is INCORRECT? A, = is unitaswell asa proper fraction B W 1 | (8 29 improper fraction S I CY ad ave like rections 0. 43 is a mixed fraction Cc jad are 5. Which of the following is a unit fraction? 15 a 1 fos a e 6 ie D. ean The child will learn: © Equivalent fractions > Reducing oS fraction to its lowest term EQUIVALENT FRACTIONS Observe the following figures carefully Here, one out of two equal Parts is shaded ie, fractio Of shaded part jg _! 2 | Here, 2 out of 4 €qual parts / Here, 3 out of 6 equal parts "are shaded ie, fraction of jare shaded ie, fraction of a ! shaded part is 4 ; 4 shaded part is 2 But in all the Figures half of the cire fee Soo. 3 ‘ i 2 4 *§ 2d arecalled equivatent fractions as they express same value but looks different, le is Shaded, Finding Equivalent Fractions Rule-1; Multiply the numerator and the denominator by the same number.62 5 19, e De Co te o 3 26 : . Ee ion of the given figure is shade 7. What fraction of the gi Er ET Ar AE View 4 2 3 . i i: i: Cag Dis 8. What fraction of the given figure is shaded? 1 4 i a! 5 e ee oo Two fractions are said to be equivalent when they have same denominators. Two fractions are said to be equivalent when they have same value. L = Mohit A. Mohit and Sidak 8 ~ Sidak Sidak and Shalu c. Shalu Mohit and Shalu All of them, 10. Match the equivalent fractions, Column A Column B 14 (p) 5which of the following options sh lows the equival Lent figure? it shaded part as of the given MM: 8° pany. gy Select the INCORRECT match. 36_ 18 2 2 Ae Be ie 2 ao pa eS 8 16 The child will learn : © Comparison of like and unlike fractions COMPARING LIKE FRACTIONS 5 7 83 W114 2, po ae @35 5 gq 9: COMPARING UNLIKE FRACTIONS Compare E and e oe 5 LCM of 8 and 5 is 40. Equivalent fractions of 2 and : with the denominator 40 are iB ie, pee . 4x3] respectively. m8 x5 5x Be 2 oy Fat wo 8 5 ‘Another Way of Comparing Unlike Fractions (Cros: 3x 5=I5and8 x 4 = 32. Clearly, 15 < 32. 6a 567 Remember Infike fractions. the fraction having the greater numerator is greater. Remember First change the tweuntike fractions into ike fractions and then compare, Multiplication)f the following figures has fraction of unshaded part less than the fracy. ‘Which of of shaded part of the Fig. (X)? Fig. (X) . Ree i Which of the following is CORRECT? 4ioF 4_7 TT tl ST Sas od ee eh? Consider the following fractions and select the CORRECT statement. a 2 oe 1 1,,3-,6—,3— Ba 4 16 A A. LeMof denaminators of all the fractions is 16.fractions and ft compare the ' s and put the correct sign, 3742 8 @) g 6 w 258 Tas (a) ig. Arrange the following in ascending order. 1 dl see git 3' 6° 12' 18° 4 i : 126 1 e 4! 18! 12’ 6 z ; 116 2 te as 7B SESSION The child will learn: ® Addition and subtraction of like and unlike fractions © Fraction of a number ADDITION OF LIKE AND UNLIKE FRACTIONS Pd? ans add and e cee 2_ 22+ 35 vo e no common factor simplest form of == = = : 30 3 33° 33+ since, adand 30 new 43 ed answer ‘0, == is the requir zs 30. rf aSUBTRACTION OF LIKE AND UNLIKE eR ICR F : 2 from | Subtract from >. Subtract from = i te 5 LCM of and 7 = 21 n 9 _N=9_2 i ee ne 25 : and a 2 «25 P sores ke 2 and 25 have no common factor. : 1S 7 5 eee is the required answer. So, = is the required answer. FRACTION OF A NUMBER 3 F q of adozen =_'x12=36+4=9 [Because 1 dozen has 12 units] 19. How many more squares must be shaded so that Zz 3 of the figure is shaded? } 20. Which one of the fol wing fract Saas re Ff th: lowing fi fol '9 fractions is = more than 2 1210 & 2 . 19 0, 4 i) 5 fae S 8 Bi ange te : a a Find the missing value in un + zo =P 3 i Boot 2 ao, ‘ Cra e 1 7 : 4 i issi lue in — =|? Find the missing value in 7 of 40 [2] «100. 1 1 1 a gore 1 x 0 Pes ers Da Trishu went on a 20 days holiday. She spent 2 weeks in Goa and 6 days in Kerala. ‘What fraction of her holiday did Trishu spend in Kerala? a 3 3 7 a roe c ee e 5 10 4 5 . 1 . Sameer bought 36 kg of rice. He bought 5 kg more rice than Samrath. How much rice did Samrath buy? uivalent fraction sum of 22 and 34 | Which of the following shows ea mm? a , thenMax. Time = 10 mins. Test Your IQ ws. tn | | a i) inations of cold drinks and popcorns Whelll i ider the given combinal ey eae with an English alphabet. Solve ee ee ard if Sunes associated with their answers, Also, arrange the letters in ti le tidy, | © per direction and find what you love? | 4 OF ae Wu w Way u ur me | te w* b U iw Was Wi v0 | Wiis Wi 1 Which of the following is equivalent to = ae : 7 1 1 AY is 1 ss 5= Saas c a a 35 15 » The missing number is B 95 Cc B4 dD 84 3. Which is greater a § ? aa 5 2 16 i oe 6 16 Can't be determinedhe value of + -O 4A? nat is! ; 1 ie By ra Oreinie 7. jee 2 7% -0-0n9!, 8 2M ey gel 8 a 5 ee) . : on 3 traction of the figure is unshaded? what > ee ne day, Mohit ran = km, jogged 57; km and walked = km. The total distance covered by Mohitis km. y F . " i 8 5 aan = = Shaded fraction of — isequalto ' = wo alo e375 — (@@6) noe ‘your chronological AS (wie. your Age! — MA 100 yo Seal ; wooetsT 2 | cowl your 10 =The child will learn ; = Metric system of length > Conversion of units > Addition and Subtraction of metric units of length METRIC SYSTEM OF LENGTHspoiTtN AND SUBTRACTION OF ye Ric | gad: 45 ken 34 m and 34 km 5 m, ~~ UNITS of LeNeTy | | Subtract 1S im m | : Ke i ok min ee eee O35 ry 5 mM __005 i 84s 9039. = 79 km 39 m oe ft LE t 0 1. Kavleen has 7m 15 cm long red ribo: has 12 m 25 cm long red ribbon and 11 ribbon altogether and by how much? A. Maya, 55 cm 8B Nand 16 m-40-cm ton 19 blue ribbon, M; ™m 85 cm tong blue ri aN Nate ibbon, Who has mo.¢ Kevleen, 55cm: Mayasoem © Kavleen, 60 cm 2, Ananya is practicing for a race. She uses the given map to find the possible routes. The route must starts from her ‘ 3 ken home and ends at the market. She 7" wants to run exactly 7000 m. Which of the following is the best route? 2km Home A. Home ~ Bank - Museum - Markel 8. Home - Museurn - Market © Home - Mali - School - Park - Market D. Home - Mall - School - Park - Bank - Market distance daily. One Rahul's schoolis 2 2, kilometres frombis house. Se kilometres. What was the cyele tyre i punctured after he had gone 17 ‘ lked? B. Tkm25om © a's house is 3000 p. 3kmeom 3kmz250m im. The distance from to om Kiara’s house the pe wo Nisha's house he has travelled. po ise n Kiara's house to Nish shopping mall is 4 times ‘ ‘ane Mice if Kiara travels fro™ sing mall, find ue ae ital distance 5 4akmEEE 5, Select the CORRECT match. j A. 360mm = 3600 cm 10870 m = 1087 km B, 1miSem=NScm D. 7 dm = 700 cm c were planted along one side of a straight road. The trees 1000 trees d 9 m apart. What is the distance between the first tree and the last tree) plantet ‘ A Bkm90m B. 8 km 991m C okm dD. 10 kr On day-1, Mr Kaushik travelled 11 km 500 m from city A to city B and on day-2, 14 km 48 m from city B to city C. On which day, he travelled more and by how 4 much? A Day-1, 2854 m 8, Day-2, 2548 m C, Day-1, 2584 m D. Day-2, 2884 m 8. Select the INCORRECT match, A. 76 km 423 im + 18 km 607 m = 95 km 30 m B 'Scm 8 mm + 68.cm 9mm = 84 om 7 mm ¢ cm 3 mm + 27 em 3mm = 58cm 6 mm D 15m 13cm + 28m 29 em = 42m 43 em 9%. Compare and put ‘>’, '<' or ‘=, fi) 2m 3em|_ ]23em m| 500ne height of Tree Qis exactly half ee Ras shown in the given figure. Way betwe, en What js the heights of the height of Tree qr Tree P ang gf aul ld will learn : Metric system of weight Conversion of units Addition and Subtraction of metric units of weight TRIC SYSTEM OF WEIGHT +10 +10 =10 +10 +10 +10 Hectogram Decagram | Gram (g) | Decigram Sore (hg) (dag) [Base Unit | _(99) te) ina) x10 x10 x10. x10 x10 x10 VERSION OF UNITS p from lower to sion of measures from higher to | Conversion of ‘measures higher units Convert {4000 9 to kilograms : =1kg ce, 10009 =! =a “4000 a = 4000+ 10009 =4kg | Therefore, w x 5 3S a 3 fi w 8 6 8TS OF WEIGHT ADDITION AND SUBTRACTION OF METRIC UNI Add: 21kg 36.9 and 34 kg 3.9 | Subtract :10 kg 39.9 from T4 kg 2g i kg 9 kg 9 ' ®@ 08 a 036 | Ww B2B +34 003 ey 039 35 039 =55kg 399 03989 =3k9 9895 11, Weight of the pineapple is : if the weight of all the apples is same. B 2kg 300g BD 5kg 300g C 2kg 9 12. Anshuman bought 56 kg 500 g of rice from one shop and 48 kg 750 9 from another. How much rice did he buy? A 105kg1509 B 105kg250g Cc 250 kg105q oD Arrange the boxes in descending order, according to their aay z a ’ t4% is 4 : kg 98 g. Difference of the weight of the smaller box e are 2 boxes. The weight of bigger boy ; weights of the two boxes is 2g 123 9. Fing th, A 19 i Find P,Q, Rand S. fy 6000mg=__P ( H) 500kg=__@ dag (ii) 20hg= __R__ (i ‘ = Yl 6392s cg D Compare by using ‘>’, ‘<' or ‘=, Tig 55 mg + 22 g 287 mg + 37968mo| | 30 g 675 mg + 56 9 675 mg + 15g 800 mo. Misha's weight is less than 60 kg but more than 25 kg. If she gains 3 kg, her weight will be a multiple of 8. If she loses 4 kg, her weight will be 3 multiple of 7. Find Misha's weight. A Stkg B akg 1% Whatis the missing weight? 9'kg 187 0 C. 10kg 7819 e marbles. What jis the weight of the lightest of someLEARN FAST six containers shown below are filled with water in the six containers? water, ce i) IL 1 8 A. 504 mt ai. What is the total amount of 900 mi nL © 4500 mb Soon: le 22. The weight o' ri in iv ir tl fal city ight of 1 beaker is shown in the given figure. What is the total capaci of 6 such beakers? A. 24060 mL B. 7200 mL 16400 mi DB, 8400 mL 23, Mr Kapoor filled 3 L 500 ml petrol in his car on 1* December, 2L 750 ml on 5 December and 4 L 250 mL on 9 December. How much total quantity of petrol did he fill in his car? Peel csoml 8 iisc¢ml G ILS00me 8 similar kettles. If each kettle DB. 765000 mi A bucket can hold the same amount of water as ‘can hold 2 L, then what is the capacity of the bucket? * 16 mL B. 6omL ¢, 1600 mL DB. lay. ilk. By how much the supply of milk was 16000 mL Ona particular day, he suppli less on that day than the pb. BOL 740 mL c eL7om BBL 750m fF water for different activities by two families is given Which more preciously and by how muc h? os i 59F28. ee 27, Mohit goes to his college d; Cooking —— 12L Cooking —> BL Washing —> 15 800 my > 20 L700 mt i ! Washing Cleaning ——? 4L 700 mL Cleaning? SE Drinking ——>25L family, 4 L 200 mL nt Drinking —> 22 L Mr Verma’s family, 4 L 200 ml Mr Verma’s family, 7 L 200 mL A. Mr Gupta's Mr Gupta’s family ,5 6 201 ° Find P, Q, R, Sand T respectively. () 3619mL=_(P) L_(Q)_ mt (ii), 23 kL =_{R)_ dal (iii) 700 cL =_(S)_L (iv) 350 dal =_(T)_hL Pp Q R s a A 30 691 230 2 53 B 3 aly 3200 W 35 3 619 2300 7 acs 30 a9 230 7 35 Arrange the following in ascending order. A PROS T A q P Q : +21L 462 mL -~17 L149 mL. 36L638mL C36 3R6 ML SG: Find the value of 32 L 325 mL. A 36L633mL al Week are as shown below:Max. Marks - 19 are ri & Test Your 19 ei «an ({e8): Complete the crossword on the basi pirection( 7 a5i8 of the clues given below it Clues given below it, 6 5 a —|— 7 : ar Across: Down 2, 1480dg = _ 9 1. 236hL = da 2 515ml -56L734mL=__mL 2, 86 kg 350.9 + 62 kg 9609 + 45kg 5, Mohit bought four bottles of 630 g = 9 olddrink each of 2.L for picnic. fF 3 gm s6em= cm. 51.700 mL colddrink was consumed, eae 4. Mr Kapoor weighs 86 kg 350 g, Mrs Kapoor weighs 62 kg 960 g and their daugher Trishu weighs 8 kg 713 9 then mi of colddrink is left & Minihas 4 m 30 cm of cloth. She only feeds 2m 70 cm of cloth to make a dress, Length of cloth will left after The sumof their weights is__9 Making the dress is cm 8, 25m=222 om 728 km 215 m — 109 km 786 m ~ m. ey Your Chronological Age (CA) Fe. ‘Your Age: —6 Time and Money | « ex orcs COVERED The child will learn: * => Conversion of time > 24 hour clock time 7 CONVERSION OF TIME et Converting bigger units into smaller units Convert: 7 days into | Convert: 5 hours into i Convert : 9 minutes into | hours ! minutes } seconds since, 1day = 24 hours } Since, |hour = 60 minutes | Since, minute = 60 seconds ! Therefore, 9 minutes = (9 x 60) seconds Therefore, 7 days | Therefore, 5 hours = (7 24) hours (5 x 60) minutes J | | = 168 hours | = 300 minutes 540 seconds | Converting smaller units into bigger units | Convert :175 hours into | Convert : 345 minutes into! Convert : 623 seconds inle days hours. { minutes ! 2ayi7st7 Number of | gays qetseNumber of | gayeaatiog Number of 168 days ae i minutes Bee Es ~60 7 ag Fs Number of a \OUrs, es iT j minutes = Ocmmmlumnce f. 345 minutes 23 seconds bie ote 5 minute 623 seconds = 10 minutes 23 second® Know your!24HOUR CLOCK TIME 74 hour clock does not use am, ang pm. Th 1 e day yzmidnight} and ends at 24:00 hours (next ¥ start 5 at 00:00 Midnight); 90:00 hours {zero hour or hee midnight es Time in this format HOURS ; MINUTES. : 6.1 1, The time shown in the clock is minutes to 12 O'clock. B 2s oars Pie a4 2, Who wrote the CORRECT time? Mohit Half past one in the morning _ Rahul___| Twenty minutes past midnight | 12:20 | leone | Quarter to thr i pm Rohit uarterto three intheevening [2:45pm [0 AW 8 B Rani Rechil Bb Alafthese Manic f By The time shown on the clock is 45 mins slower than ime? the correct time. What is the correct time ‘Quarter to 5 minutes past 4i ? Which one of the following is INCORRECT 4. . B, 3 mins 10 secs = jo ecg f = 70 mins Pp is ll 2 hrs 15 mins = 125 , C124 hours = 5 days 4 hours e, i Seconds. o days hours. 5, 388 hours = ie 5 A AN B 64 ¢ ; 860 6. Fillin the blanks. (a) There are minutes in 12 hours. (b) 8 mins 52 secs = seconds. (a) (b) A. 720 352 B 725 523 © 720 532 D715 ao2 The following table shows the schedule of some flights in 12 hour clack { as well as 24 hour clock format where some entries are missing. Read it a the missing entries, ARRIVAL TIME DEPARTURE TIME FLIGHTS | 12 hour clock | 24 hour clock 12 hour clock | 24 hour time time time I 09:30 a.m. P I R 20:20 R Q R A 08:30 4:00 pm 8:20 pm. B 0830 3:00 p.m, 8:20 pm “! ©. 0930 3.00 pm 820 pe, ® 0930 4:00 pm 720 pi Find the values of PQ » Qand Rlin 24 hour clock ti P Quarter to 3 durin pas: Q:3 hours after 7:30 p.m, ‘Half past 2 in the night,sata lon of an ac tivity jon OF AN ACTIVITY watch a movie at 15:31 farted to 5:3 yy 5 eave? EID re ornesvee snail 3O 2 hours > 20 min purtion of the movie was 2 hours 20 minutes nutes a Ronit went for swimming at 3 : 30 p.m. and returned back home after 90 mins Which of the following clock shows the time at which he came back home? : « ie Si Gar q : : 3 eT } ey hs nas” S 1 A performance began at 19 : 35 and lasted for 1 hour 25 minutes. At what time didit end? 20:10 B. 20425 C 2ts05 pb. 20 } Animesh is celebrating Diwali with his friends. He knew that ™ Titecrackers can be burst till 10 p.m. only. The time shown by the clock is the starting time when Animesh starts bursting joy bursting p. seqninutes 545 C 4a minutes 45 minutes Seenifl 4 d after 6 hour: turne’ at 8:15 a.m. for her school and did she return? pp 4235 - AS 45:00 a. =— ean; The child will learn: © Terms related to calendar ie., year, month, week etc. CALENDAR 1. There are 12 months in a year. 2. The months January, March, May, July, August, October and December have 31 days. 3. The months April, June, September and November have 30 days. 4. There are 7 days in a week. 5. A month will have either 4 Sundays or 5 Sundays. 6. Inanon-leap year, there are 365 days. 7. After every 4 years there is an extra day that makes 366 days in a year called year. This extra day is added to the month of February. Note : You can divide a year by 4, to find out if it is a leap year or not or if the last tno digits are divisible by 4, then it will bea leap year. 13. Nitika wants to mark her birthday on the given calendar, She know that her bi ison tenth day before her brother which is on fourth Thursday ihe age of Priyanka js less than 7 in 2013," 70 years ang isa ; i i . Whi Multipi - her age is a multiple of 6. Which of the f, lowing is her "ple Of 7. In 2014, s5t Biriae ears ‘ age in 20147 A 30 years year re jn 2013, Aryan was 14 years old, In 2014, his father beco, he isin 2014. Find the age of his Father in 2016, IGS 35 old as A 60 years B65 years ¢ SB year ete y7. Select the INCORRECT statement. i A, Number of days in a leap year is 3466 days B There are 4 months with 30 days in a year Ge The number of days between March 22 and May 17 are D Year 2000 is nota leap year. 18. Rehanastarted writinga story on17""Feb (lea, tthe story. She will finish the story on A. 29" March 8 30"March © 3IMarch { P Year) and took 43 daysto complete Apri 19. Mrinal's school closes for summer vacations from 18 May (First Holiday) to 5 July(Last Holiday). How long is the vacations? A 48 days B. 38 days C47 days D. 49 days 20. What date falls on 10" day after 26 March? A 5!" April B 4! April C6! April 2. 7M April sion ZY The child will learn : © Operations on money d Subtraction POlatoes for & 129.50, onions for % a oe is € 500, then fin Rani for this purchase is % 5 ‘ome tomatoes. If the total Rupees Paise 129 . 50 +250_. 00 are 379_- __Rupees Palse OO AIaia 10) Ow oOo punt paid Total amount pai¢ pata ts ost of potatoes and onions ea 120.50 of€12050 Cost of tomatoes Multiplication and Division If Rajni earns 555800 paise ina week, then how much she will earn in the Month g April? Rajni earns in a week = 555800 paise or € 5558 (Because € 1= 100 paise} Since, }week has 7 days Therefore, money she earned in day = € (5558 + 7) = 794 Total earnings in April = & (794 « 30) = € 23820 LEARN (6.4 9 FAST Shreya bought some fruits from Store x, Some ink was spilled on the receipt, What was the price of the pineapple (in ¢)? Storex _Receipt No. 9812 Items. | Cost A. 708 | Mango 2482 Pineapple © 806 |Grapes D608 Total B. 666 Arman bought 10 flowers at ¢ 25, each and another 15 flowers at 30 each. He is left with ¢ 715 at the end. How much ‘Money he had in the beginning? BR R415) Ct 455 B15) Mak . 89in9 on their holidays, They spent @ 3458 on petrol 00.n stay. 7 ' 10 on sight seeing. HOW ses”mit packed 726 biscuits into packets of 3. 4 He ash Fa hh did he get in alt? Sold th How mucl em at & 2 > B &4B4 per packet. m4 = ieee A of pow much does the (Do cost? 2100 G@. @.. Be. : 2320 a. we =%960 40 22 __ Read the menu of a hotel and answer the following question Menu Items Costline) | Items Cost (in 2) Soup 28.00 Chips 20.00 Juice 50.00 | _—Coffee 53,00 Pizza 170.00 | Tea (eee [_Cutlet | 312,00 __ Water bottle 22.00 Rohan has given a party to two of his friends, He bought 2 packets of chips, {pizza and 2 juices. How much he has to pay? A. €)50 B 310 Go 2210 27, This is a part of biscuits packet wrapper. Which of these informations can be found out fr ack. ‘om this? A The number of biscuits n The price of each biscutt & € The total weight of biscurts. f The weight of each biscutt #8. Select the CORRECT match. A 25.42 = 25420 p sf = 1384p a 1080-080 p 24293 = 4239p awberries Juhi can buy, if costs % 80, then how much str C30, Match the following Column B Column A £8660) } (p) e709 -8 NO +E 312 = wi) a - | a (@1372) vd (q) 2250 - € 1050 = (i) tJ (R) %2350 +% 4380 = (ii) E1200) (s) 5520 +% 3140 = (iv) A. API, (QU), (R)-(0¥), (5) (P)-(ii), (Q)=(i), ARI=Liv), (SI-(0) CUP} EN), CQ) Uih), FR) Civ), (SP) (P)-(Hi), (Q)-(iii), UR) -(i), (S) tiv) Max. Time - 10 mins. =; Test Your 10 Max, Marks -10 —_———. | Direction (1-10) : Mr Mittal, his wife and their two chil dren went to Goa on holiday. He took some ves from his office. His last working day was 11" April 20Xx.y_ Lines, Angles, Polygons and Symmetry en > ae TOPICS coy al terms i Basic geometncs The child will learn : Types of figures Polygons Circle = Types of lines (Parallel, intersecting, Symmetry atte Perper jar lines ar 5 ing lines! aes rpendicular lines and Coinciding lines) _ > Angles ©} Basic geometrical terms (Point, Line, Line segment and Ray) . BASIC GEOMETRICAL TERMS, TYPES OF LINES AND ANGLES Consider the following figures. We can say that : |. (b) has a pair of parallel lines. & In (2), BA and BC are rays also called arms fo" 3. Ine), AB and BC are line segments also cal salled vertex. iii a. > 13 MATH | Clas: é — ee forming ZABC, where Bis called vertex ied arms forming ZABC, where B isie: 3. 4, {c} has a pair of coincident lines AB and AC 5, (d) has a pair of intersecting lines forming angles; @ ow mn ¢ D 9. How many of the following are polygons? _COVests 10. In the given polygon, number of angles inside the figure is , number of sides is and number of vertices is 4 c 576 4607 Il. Consider the following figures and select the INCORRECT statement. \ Isosceles Triangle Sealene Triangle (ii) (iti) Equilateral Triangle 6) A. All figures are polygons with 3 sides. ‘i B All sides of figure fi) may or may not be oe © Only two sides of figure (i) could be eave B. All sides of figure ti) are of different !en9 MATH Class4i ts. ider the following statement ‘ re) iB ae : Polygons are closed figures which are not simp! Statement-2: Polygons ae closed figures with 3 or more straight lings yy Which of the above statement is TRUE? “sat ee Ae . ¢ sth Land 2 leith 4, A Only! B Only2 13. Which of the following is CORRECT? (i) Square is a polygon. (ii) Rectangle is a quadrilateral. (iii) Triangle is a polygon, A. Only (i) 8B. Only lil! and (ii) C. Only (i) and (ii) Opty) g ag, 14. Which of the following statements is CORRECT? A. Closed figures which cross themselve 8 Square is a quadrilate C Polygon with least nu D. Point where two rays meet is ¢ e=u> The child will learn: => Circle and retated terms i.e, centre, radius, CIRCLE Consider the given figure of circle We can say that: Q is the centre of the circle, OA, OB and OC are radii. AB, PQ and RS are chords but AB igh the centre hence it is a diameter AB is the longest chord of the circle, Point O is inside the circle, Points A,B,C, P.Q,Rands Points Mand N are ‘outside ¢ Diameter AB = 2 x Radius ( Note ; (i) There is only one centre in a Circle, (ii) All diameters have same length, (iii) Different chords may have different | are called simple closed figures which has only two equal sides ber of sides js a square. alled vertex of the angle formed, » diameter, chord ete. are on the bound; he circle. (OA oF OC oF OB) lary of the circle, DN OMeaWN