year 8 maths

4C
Decimal place value and fraction/decimal conversions
215
11 The prime minister’s approval rating is 0.35 , and the opposition leader’s approval rating is 3 8 .
Which leader is ahead in the popularity polls and by how much?
12 Justin dug six different holes for planting six different
types of fruit bushes and trees. He measured the
dimensions of the holes and found them to be:
A depth 1.31 m , width 0.47 m
B depth 1.15 m , width 0.39 m
C depth 0.85 m , width 0.51 m
D depth 0.79 m , width 0.48 m
E depth 1.08 m , width 0.405 m
F depth 1.13 m , width 0.4 m
a List the holes in increasing order of depth.
b List the holes in decreasing order of width.
13 a Write a decimal that lies midway between 2.65
and 2.66 .
b Write a fraction that lies midway between 0.89
and 0.90 .
c Write a decimal that lies midway between 4.6153
and 4.6152 .
d Write a fraction that lies midway between 2.555 and
2.554 .
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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