Number worksheet — GCSE Foundation

1.Work out 2⁵.

2.Write 5,000,000 in standard form.

3.In a class, 1/3 of the pupils are girls. There are 12 girls in the class. Work out how many pupils are in the class.

4.Work out 2 × (−3 + 7)

5.A charity bake sale sells 187 cakes at £2.95 each. By rounding each number to 1 significant figure, work out an estimate for the total amount raised.

6.Write the fraction 3/4 as a decimal.

7.Simplify 5⁻² × 5⁴, giving your answer as a single power of 5.

8.Light travels at 2.998 × 10⁸ metres per second. A distant object in space is 3.1 × 10¹⁵ metres from Earth. Work out an estimate for the number of seconds light takes to travel from the object to Earth, by rounding each number to 1 significant figure.

9.Work out 3 + 4 × 2²

10.Round 0.006482 to 2 significant figures.

11.A cyclist rides at a steady speed of 8 metres per second. Work out this speed in kilometres per hour.

12.Two fair six-sided dice are rolled and their scores are added together. By listing the possible totals systematically, work out how many different totals are possible.

13.A photograph uses 4 × 10⁶ bytes of storage. A memory card holds 3.2 × 10¹⁰ bytes. Work out how many of these photographs the card can hold. Give your answer in standard form.

14.A box holds 140 pens. 25% of the pens are red. Work out how many of the pens are red.

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