Page 9 - ACE YR IGCSE A TOP APPR' TO MATHS

5
2
2 Use your calculator to work out the value √0.7 + (10 × 3.1) and write your answer correct to one
decimal place.

[2]

3 By correcting each number to 1 significant figure, estimate the value of √9.2 × 41.8 . Show all your
working. 3 √1345
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[2]

4 Calculate (0.78305 – 5.02 ) , giving your answer correct to 3 significant figures.
2 6

[2]

3.502
5 Evaluate . Give your answer correct to
0.897 – 25 × 10 –2
(a) 3 decimal places,

[1]

(b) 3 significant figures.

[1]

6 By writing each number correct to the nearest whole number, estimate the value of 24 × 0.573 .
Show your working clearly. 3.29

[2]

7 Calculate 5 1 (tan 38° + 3), give your answer correct to 1 decimal place.
3

[2]

Cambridge IGCSE
TM
4 Ace Your Mathematics

Chapter 1A.indd 4 15/03/2022 10:26 AM