Chapter test Foundation – Chapter 10 Edexcel GCSE Mathematics A Linear: Assessment Pack 27 © The authors 2010 10 Using a calculator Test Questions in this test are targeted at the grades indicated. 1. Cassie’s Cafe Tea 65p Burger £1.38 Coffee 78p Hotdog £1.29 Cola 53p Pizza £1.18 Kenny buys two burgers, three pizzas and five coffees at Cassie’s Cafe. He pays with a £20 note. Work out how much change he gets. (3) 2. Mr Chips wants to buy some calculators for his class. Each calculator costs £4.37. He can spend up to £100. What is the greatest number of calculators he can buy? (2) 3. Change these fractions to decimals: a 7 _ 8 (1) b 23 ___ 160 (1) 4. Which two of the following can be written as recurring decimals? 3 _ 4 7 __ 20 13 __ 25 5 _ 6 4 _ 7 29 __ 50 (2) 5. Use your calculator to work out: a 3.8 2 (1) b 3 √ ______ 373.248 (1) c 9 5 (1) 6. 6 kg apples and 5 kg pears cost £11.59. 1 kg of apples cost £1.14. Work out how much 1 kg of pears costs. You must show all your working. (3) 7. a Use your calculator to work out the following: 768.2 + 3.79 __________ 84.5 – 0.197 Write down all the numbers on your calculator display. (2) b Use your calculator to work out the following: 2.87 × 17.1 _________ 0.32 + 1.86 Write your answer correct to 2 decimal places. (3) G G F F E D D