Number worksheet — GCSE Foundation

1.A number is multiplied by 4, then 8 is added, giving the result 40. Work out the number.

2.Write down the reciprocal of 5/8

3.Work out (−6) + (−4) × 3

4.To estimate the cost of buying 38.7 m of rope at £21.40 per metre, both numbers are first rounded to 1 significant figure. Work out the estimate.

5.A box stands on a table. The box exerts a force of 240 N on the table, and the base of the box has an area of 0.8 m². Work out the pressure the box exerts on the table, in N/m².

6.Find the missing number: ▢ ÷ 15 = 24

7.Put these numbers in order, starting with the smallest: 3.2 × 10⁴, 2.9 × 10⁵, 4.1 × 10³

8.The distance from the Earth to the Moon is 384,000 km. Write this distance in standard form, in kilometres.

9.2/3 of an amount of money is £30. Work out the amount.

10.A train leaves Leeds at 14:35. The journey takes 1 hour 50 minutes. Work out the time the train arrives. Give your answer using the 24-hour clock.

11.3/5 of a 5/6 litre bottle of juice is poured out. Work out the exact volume poured out, in litres.

12.A recipe needs 0.485 kg of flour per cake. A bakery estimates its flour order by rounding this amount to 1 significant figure, then multiplying by the 60 cakes it plans to bake. Work out the bakery's estimate for the total flour needed, in kg.

13.Round 0.006852 to 2 significant figures.

14.Write 45,000 in standard form.

15.A cube-shaped storage box has edges of length 7 cm. A shelf can hold a total volume of 2,000 cm³. Work out the greatest number of these boxes that will fit in that volume.