Number worksheet — GCSE Foundation

1.A laptop costs £720. A carrying case for it costs 1/9 of the price of the laptop. Work out the cost of the carrying case.

2.Write these numbers in order, starting with the smallest: −1.4, 5/4, −6/5, 1.3, 0

3.Work out −7 − (−3).

4.An allotment is divided into two plots in the ratio 2:3. The larger plot has an area of 18 m². Work out the fraction of the total area taken up by the smaller plot.

5.Write down the symbol that makes this statement true: −9 ___ −4

6.A window display has red baubles, gold baubles and green baubles in the ratio 4 : 5 : 6. What fraction of the baubles are not green?

7.Write 0.875 as a fraction in its simplest form.

8.A garden has flowers, herbs and vegetables in the ratio 2 : 3 : 4. What fraction of the garden is not vegetables?

9.Work out 4368 ÷ 12.

10.Chloe wants to work out 3 1/4 − 1 2/3. She converts both mixed numbers to twelfths, then subtracts the whole numbers and the fraction parts separately, without checking whether she needs to exchange first. Work out the correct value of 3 1/4 − 1 2/3, giving your answer as a mixed number in its simplest form.

11.Write these numbers in order, starting with the largest: 7/8, 0.8, 78%, 17/20

12.Work out √225 ÷ 3.

13.Work out 3 1/5 + 1 2/3. Give your answer as a mixed number in its simplest form.

14.In a science experiment, the temperature of a liquid is recorded as 18.6 °C, correct to the nearest 0.2 °C. Write down the error interval for the actual temperature, T °C.

15.Work out an estimate for 89 + 52, by rounding each number to the nearest 10.