Number worksheet — GCSE Foundation

1.The density of a type of plastic is 0.9 g/cm³. Work out this density in kg/m³.

2.In a chess club, 3/8 of the members are girls and the rest are boys. Write down the ratio of girls to boys.

3.Work out 5 + 3 × (9 − 6)

4.£60 is shared between Amir, Bo and Chen in the ratio 1:2:3. Work out the fraction of the £60 that Amir and Bo receive together.

5.Work out 3.7 × 24.

6.Freya types 4² + 3² into her calculator and writes down 49. Work out the correct value of 4² + 3².

7.Write 0.45 as a fraction in its simplest form.

8.Work out an estimate for 37 × 84, by rounding each number to 1 significant figure.

9.Four weather stations each recorded their lowest overnight temperature. Which of these readings is the lowest?

10.A café sells ice cream in three flavours: vanilla, mango and pistachio. Isla buys a cone with two scoops, using two different flavours, one for the bottom scoop and one for the top scoop. Work out how many different cones she could buy.

11.A number, n, is equal to 3.7 when rounded to 1 decimal place. Write down the error interval for n.

12.On a number line, point A is at −1. Point B is 4 units from point A. Write down the two possible positions of point B.

13.Work out an estimate for 6.4 × 3.9, by rounding each number to the nearest whole number.

14.Work out an estimate for 312 × 19, by rounding each number to 1 significant figure.

15.3/5 of a 5/6 litre bottle of juice is poured out. Work out the exact volume poured out, in litres.