Number worksheet — GCSE Foundation

1.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?

2.Write '3.2 million' as a number in figures.

3.A measuring jug shows a volume of 340 ml, correct to the nearest 20 ml. Work out the smallest possible volume in the jug.

4.Simplify 2³ × 2⁴, giving your answer as a single power of 2.

5.Write 0.06 as a fraction in its simplest form.

6.Work out the value of √64.

7.Estimate the value of √45, giving your answer to the nearest whole number.

8.Last year a company made a profit of £5,200,000. Write this amount in standard form.

9.Write down the value of 7⁰

10.Sara has a red T-shirt, a blue T-shirt and a green T-shirt. She has black shorts and grey shorts. By listing the combinations systematically, work out how many different outfits of one T-shirt and one pair of shorts she can make.

11.A concrete mix is made from cement and sand in the ratio 3 : 5 by mass. A builder mixes 96 kg of concrete. Work out the mass of cement in the mix.

12.Work out −4.5 + 2.8.

13.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.

14.Round 24,681 to the nearest 1,000.

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