Number worksheet — GCSE Foundation

1.Work out an estimate for 79.3 − 24.6, by rounding each number to the nearest whole number.

2.A charity shop buys a coat for £24 and sells it for a profit that is 3/8 of the buying price. Work out the selling price.

3.A tin of soup has a mass of 450 g. A bag of potatoes has a mass of 2.6 kg. Work out the total mass, in kilograms.

4.Work out the value of 2⁻²

5.A country's population is 8,340,000, and it is estimated that 1,950,000 of them live in the capital city. By rounding each number to 1 significant figure, work out an estimate for the number of people who do not live in the capital city.

6.After a price increase of 10%, a laptop costs £330. Work out the original price.

7.Is 120 divisible by 5? Give a reason for your answer.

8.Work out 0.6 × 0.04.

9.A three-digit code is made using the digits 1, 2 and 3, and each digit may be used more than once. Work out how many different three-digit codes can be made.

10.Work out 20 − 8 ÷ 2 + 1

11.3/5 of the students in a year group walk to school. 90 students walk to school. Work out the total number of students in the year group.

12.A cheetah runs at a steady speed of 25 metres per second. Work out this speed in kilometres per hour.

13.The number 36 can be written as 2² × 3², and the number 84 can be written as 2² × 3 × 7. Work out the highest common factor of 36 and 84.

14.A bus leaves the station at 09:47 and arrives at its destination at 11:23. Work out the journey time.

15.Work out 2 3/4 − 1 5/6. Give your answer as a fraction in its simplest form.