Q.1 Fill in the blanks a) Alinehasno _andno_ b) A line segment has a fixed c) Aray has an and has no . d) Two rays starting from the same point called form the arms of the angle ¢) If the measure of the two angles are equal they are called angles. f) An angle made by the arms of the clock with one arm on six and other on twelve is angle. g) An angle made by the arms of the clock with one arm on five and other on twelve is___ angle. h) An angle made by the arms of the clock with one arm on five and other on eight is angle. Q2. Draw the angles whose measure is a) 60° b) 85° c) 90° d) 180° e) 110° f) 155° g) 150° h) 145° Q3. What is the measure of the angles of the rectangular blackboard? Q4. What is the measurement of the angles of a square table? QS. Mark the points L, M and draw a) Ray LM b) Line LM c) Segment L MQ.1 Fill in the blanks:- 1) is a factor of every number. 2)_---- is neither a prime number nor a composite number. 3) There are__ prime numbers between 1 and 100. 4) Every number is a multiple of __.______ . §) is the smallest odd composite number. Q.2 Give an example of ‘twin primes’. Q.3 Without actual division, find out if the following are divisible by 5:- a) 17635. b) 2031. c) 40320. Q.4 Check if the following are co-prime :- a) 18, 72. b) 17, 64.Q4 () @) (3) 4) () (6) a) (8) (3) (10) (A) (B) Q3 m @) G8) 4 (5) (6) ita) (8) () (0) Fill in the blanks. Every number is a multiple of The greatest 2 digit multiple of 3 is The number which are multiple of 2 are called. The greatest 3 digit multiple of 2 is The number which are not multiple of 2 are called. The number that are divisible by 1 and itself is called Two factor of 6 are and__ 1, 3, 5, 7, 9 are numbers. are divisible by 2. 0, 2, 4, 6, 8 are _ numbers. Write first five multiple of the following, (1) 8 (2) 10 (3) 12 9 @)u Write three factor of the following. Q@)10 © (zy 8 (3) 32 (4) 21 (8) 45 Write whether the following statements are true of false. 7 is a factor of 35. 4 is a smallest composite number. 189 and 160 are coprime number, 1 is the smallest prime number. 101 is the smallest 3 digit prime number. — 405 and 392 are coprime number. 97 is greatest 2 digit composite number = __ a every number is a factor of it self. 1 is a factor of every number. 98 is the greatest 2 digit composite number.Me a) ») ) 4) e) f] WV. Vv. Vi VIL. Vill. MULTIPLICATION ISION Fill in the blanks: a) Multiplication is repeated Division is repeated b) Ina simplification problem, we should first solve what Is given within the brackets. c) The number that is multiplied by another numeral is called the d) The number obtained on multiplying the __ ___and the is called the product . e) x Quotient + Remainder = f) The remainder has to be than the divisor. Fill in the blanks based on properties 647297 647297 =__ 478x64=____—x 478 ___ + 647297 =0 450 x 100 2376800 + 100 = 34567 x__ = 3.4567 487320+1= 47831 x__ = 0 Match each question to its correct answer: 4762 x 100 160 () 1440 x 100 476200 ( ) 20x80 ieoo ( () 4x80 14400 () 40x4 144000 ( ) 72x 200 320 () Multiply by Expanded Notation Method 8172x7 Multiply by Column Method 548672 x 215, Divide and check your answer 69573 = 18 Solve 548672 +215 Simplify { 6 of 145 + (3 + 2) }+2-4 of 20DIVISIBILITY , FACTOR AND MULTIPLES Fill in the blanks: 1. Anumber is divisible by if the last 2 digits are zeroes. A number will be divisible by 12 if itis divisible by and of a number also divide that number without leaving a remainder. _ is the smallest factor any number can have. yew For every number you can get multiples. o A NUMBER is a natural number that has more than two different factors. 7 is neither prime nor composite. 8 Numbers that have only 1 as their common factor are called 9. 36,504 is divisible by 2 and by 9, hence it will also be divisible by 10. Ifa number is divisible by 24, it will also be divisible by Do as directed: 1. Write down all the factors for 69 2. Find the common multiples for the given sets of numbers: a.4,7 b.5,11 3. Find the common factors. Also check if the given numbers are co-primes: a.24,34 —_b.15,16 4. Check if the following pairs of number are twin primes: 218,20 31,29 Without actually doing the division, check whether the first number is divisible by the second number. Give reasons for your answer: 1942 by 2 and 4 30005 by 5 and 10 3795 by 3 and 9 893516 by 11 567000 by 4 and 8 5647800 by 24 54692 by 11 94503 by 18 678 by7 2100 by 6 In each of the blanks below, place the smallest single digit required, so that the first number is divisible by the second number. 1. 6369037__by2 2. 78353__2by11 3, 36420__Oby8 There are 135 words selected for a spelling bee competition. These words have to be distributed to the students in the form of a small booklet not exceeding 9 pages. Find the number of words in each page.ill in the blanks . Anumber is divisible by 10, if its one’s place is J fits one’s place is 0 or 5. - A number is divisible by , if its one’s place is 0,2.4, 6 or 8. __is neither prime not composite. is the smallest prime no. __is the only even prime no. . Anumber is divisible by 9, if the sum of the digits is divisible by Prime numbers have only ___factors. . A number is divisible by 3 if the _ is divisible by 3. _as their common factors. |. Co primes are numbers which have only __ . LCM of 9 and 10 is 12, HCF of 17and 19 is 13. LCM of 6 and 18 is___ 14, HCF of 9 and 45 is 15. A number is divisible by ____, if itis divisible by both 2 and 3. Answer the following: 1. Without actual division , check whether the following are divisible by 2 (a) 7422 (b)39582 (©)14659 (d)52314 2. Check whether the following are divisible by 3 (a) 741352 (b)2034198 — (c)317925 (a)3412920 3. Check whether the following are divisible by 4 (a) 4137156 (b)135764 (0)34560 (d)167435 4. Check whether the following are divisible by 5 (a) 187620 (b)258732 (©)361245 (a)705204 5. Check whether the following are divisible by 6 (a) 4234156 (b)1027863 — (c)924658 (d)1850421 6. Check whether the following are divisible by 8 (a) 1967000 (b)2587382 (c)3614944 (d)191640 7. Check whether the following are divisible by 9 (a) 739602 (b)2034198 — (c)674132 (d)7413552 8. Check whether the following are divisible by 10 (a) 395725 — (b)6042190 — (c)814231 (d)429509. Check whether the following are divisible by 11 (a) 668666 (1251206 (()7917624 (6510625 10. Find LCM (a) 36,20 (1)36, 48, 64 (24, 36 (A)39, 65, 78 (€) 60,72,96 (948,60 (g)12,15,45 ()42,36 @ 1421 (25,65, (k)48,60 (35,40 (m) 50,60 (n)36, 49 (0)26,13,91 (p)60,84,96 11, Find the HCF (a) 16,24 (b)28,36 ()40,24 ()52,68 () 36,18 (042,72,18 (g)16,32,40 ()42,72,18 @ 6,10,28 (66,44 (K)38,60 (45,18,36 (m) 26,43WORD PROBLEMS ~ ALL OPERATIONS, Solve along with appropriate statements: The NIE newspaper printed 64,809 copies in a day. Of these copies 645 were distributed to TGES. How many copies were distributed to other schools? Grade 5 went on an adventure trip. They travelled the first 500km by bus and the next 34,600 km by train to reach their destination, What distance did they cover? A business man built a big house. He bought a plot of land for Rs.70 lakhs . He spent Rs. 30,23,490 for the construction and Rs.4,34,509 for the interior decoration. How much money did he spend for his house? 2340 TV sets are manufactured daily by Sony Corporation. Find the total number of sets manufactured in January 2004 and February 2004. The Himalaya Book Store sells 2389 books every day. Find out how many books the store would have sold last month. What is the difference between the greatest 5-digit number and smallest 6 digit number? The total production of 16395 tons of rice was divided equally and sent to 76 ration shops and the remaining was used for mid-day meals for students of the government school on Republic Day. Find the quantity of rice used for mid-day meals. In our school library there are 14,567 story books, 8,450 moral value books and 260 activity books? How many books are there in our library?