year 8 maths

4B
Computation with fractions
209
Example 6a,b
11 Evaluate:
2
a
9 ÷ 3 5
b
1
3 ÷ 2 5
c
8
7 ÷ 11
2
d
11
3 ÷ 5 2
Example 6c
3
e
4 ÷ 6 7
12 Evaluate:
4
a 1
7 ÷ 1 2
3
f
10
15 ÷ 1 3
b 3 1 5 ÷ 8 1 3
g
6
5 ÷ 9 10
c 3 1 5 ÷ 2 2 7
h
22
35 ÷ 11
63
d 6 2 4 ÷ 2 1 6
13 Evaluate:
1
a
2 × 3 4 ÷ 2 5
b
3
7 ÷ 9 2 × 14
16
c 2 1 3 ÷ 1 1
4 ÷ 1 3
5
d 4 1 2 × 3 1 3 ÷ 10
14 For questions 7–13 , redo the first part of the question and the last part of the question on your
calculator to check your answer is correct.
PROBLEM-SOLVING AND REASONING
15, 16, 19 15–17, 19, 20
17–21
15 Max and Tanya are painting two adjacent walls of equal area. Max has painted 3 7
of his wall and
Tanya has painted 2 of her wall.
5
a What fraction of the two walls have Max and Tanya painted in total?
b What fraction of the two walls remains to be painted?
16 Eilish is required to write a 600 -word literature essay.
After working away for one hour, the word count on her
computer shows that she has typed 240 words. What
fraction of the essay does Eilish still need to complete?
Write your answer in simplest form.
17 Vernald orders 12 1 kilograms of Granny Smith apples.
3 4
Unfortunately of the apples are bruised and unusable.
7
How many kilograms of good apples does Vernald have
to make his apple pies?
1
18 Mary asks her dad to buy 18 bottles of soft drink for her party. Each bottle contains 1
4 litres.
The glasses they have for the party can hold 1 of a litre. How many glasses could be filled from the
5
18 bottles of soft drink?
Cambridge Maths NSW
Stage 4 Year 8 Second edition
ISBN 978-1-108-46627-1 © Palmer et al. 2018
Cambridge University Press
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