year 8 maths

216 Chapter 4 Fractions, decimals, percentages and financial mathematics
14 Complete the following magic square using a mixture of fractions and decimals.
4
2.6 1
5
6
2
4.2
ENRICHMENT
– –
15
Exchange rates
15 The table below shows a set of exchange rates between the US dollar (US$), the Great Britain
pound (£), the Canadian dollar (C$), the euro (€ ) and the Australian dollar (A$).
US$ £ C$ € A$
US$ 1 1.58781 0.914085 1.46499 0.866558
£ 0.629795 1 0.575686 0.922649 0.545754
C$ 1.09399 1.73705 1 1.60269 0.948006
€ 0.682594 1.08383 0.623949 1 0.591507
A$ 1.15399 1.83232 1.05484 1.69059 1
The following two examples are provided to help you to interpret the table.
• A$1 will buy US$0.866 558 .
• You will need A$1.15 399 to buy US$1 .
Study the table and answer the following questions.
a How many euros will A$100 buy?
b How many A$ would buy £100 ?
c Which country has the most similar currency rate to Australia?
d Would you prefer to have £35 or € 35 ?
e C$1 has the same value as how many US cents?
f If the cost of living was the same in each country in terms of each country’s own currency, list
the five money denominations in descending order of value for money.
g A particular new car costs £30 000 in Great Britain
and $70 000 in Australia. If it costs A$4500 to freight
a car from Great Britain to Australia, which car is
cheaper to buy? Justify your answer by using the
exchange rates in the table.
h Research the current exchange rates and see how they compare to those listed in the table.
Cambridge Maths NSW
Stage 4 Year 8 Second edition
ISBN 978-1-108-46627-1 © Palmer et al. 2018
Cambridge University Press
Photocopying is restricted under law and this material must not be transferred to another party.