year 8 maths

342
Semester review 1
5 If 5% of x = y , then 10% of 2x equals:
A 4y B 2y C
1
y D 10y E 5y
2
6 When paying for a meal at a local café the bill is $97.90 . The GST included in this cost is:
A $8.90 B $9.79 C $89 D $88.11 E $8.11
Short-answer questions
1 Copy and complete these equivalent fractions.
3
a
5 = □ □
b
30
11 = 5 55
2 Evaluate each of the following.
3
a
4 − 1 b
2
4
d
7 − 2 3
3 Write the reciprocal of:
2
a
5
4 Evaluate:
e
4
5 + 3 5
4
9 × 3 4
c 1 4 6 = □ 3
c 1 1 2 + 1 3 4
f 1 1 2 × 3 5
b 8 c 4 1 5
a 2 1 2 × 1 4 5
b 1 1 2 ÷ 2 c 1 1 2 × 1 4 ÷ 3 5
5 Calculate each of the following:
a 3.84 + 3.09 b 10.85 − 3.27 c 12.09 ÷ 3
d 6.59 − 0.2 × 0.4 e 96.37 × 40 f 15.84 ÷ 0.02
6 Evaluate:
a 5.3 × 103 b 9.6 × 105 c 61.4 ÷ 100
7 Copy and complete this table of decimals, fractions and percentages.
Fraction
1
4
1
2
1
5
1
3
2
3
Decimal 0.99 0.005
Percentage 80% 95%
8 Find:
a 10% of 56 b 12% of 98 c 15% of 570 m
d 99% of $2 e 12 1 % of $840 f 58% of 8500 g
2
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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