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Maths Grade 8

1.1.24, 1.070, 1.139, 1.3, 1.5 2. a) 3.7 b) 3.7 c) 3.75 3. a) The lowest common multiple of 6 and 4 is 12. b) The highest common factor of 36 and 24 is 12. From parts a and b, we can conclude that the LCM and HCF are related.

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326 views5 pages

Maths Grade 8

1.1.24, 1.070, 1.139, 1.3, 1.5 2. a) 3.7 b) 3.7 c) 3.75 3. a) The lowest common multiple of 6 and 4 is 12. b) The highest common factor of 36 and 24 is 12. From parts a and b, we can conclude that the LCM and HCF are related.

Uploaded by

Lorraine
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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1) Write these numbers in order starting with the smallest

1.5 1.39 1.070 1.3 1.24

_______ _______ ______ ______ ____ (2)


Smallest largest

2) Write the number 3.7452 correct to :

a) Whole number

b) 1 decimal place

c) 2 decimal places (3)

3) a) Find the Lowest Common Multiple of 6 and 4 (2)

b) Find the Highest Common Factor of 36 and 24 (2)

c) From part a part b what can you conclude in your answer (1)
4) a) Pens cost 36 cents each
Pens cost 12 cents each
(i) Write an expression for the cost of y pens (1)

(ii) The cost of y pens and z pencils (2)

5) C= 40q +15s, calculate the value of C


When q=7 and =4 (2)

6) Complete the table of values, given y=2x -3 (2)

x -1 o 1 2 3
γ -3

7) Write 6600 as a product of its prime factors (2)

8) Write down the next two terms in this sequence


a) 1 , 3.5, 6, 8.5, _______, _________, (2)
b) Explain how you worked the next two numbers in part a (1)

9) Calculate (4)
a) 0.75×100 =

b) 1.375×1000=¿

c) 4000÷ 1000=¿

d) 2.5÷ 100=¿

10) a) Find the HCF of 90 and 140 (2)

b) Find the LCM of 90 and 140 (2)

11) 210 = 1024 find this fact to find

a) 211=

b) 212=

c) 29= (2)
12) Circle around two square numbers from the list below

7, 9, 19, 25, 40, 50 (2)

13) (4)

× -2 3 5
-4
-3
6 30

14) x → ×2 →−3 → y (4)

x 1 2
y 7 19

15) Calculate

a) 62× 0.1

b) 4× 0.01

c) 0.6÷ 0.1

d) 23.6÷ 0.01 (4)

16) Round of the number below to:

24 849 921 to the nearest


i) 100

ii) 100

iii) 1000

iv) 10 000

v) 100 000

vi) Million (6)

17) Find the first 4 terms of the sequence.

The position to term rule is multiplied by 2 the add 3

__________, ___________, __________, _____________ (2)

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