Number worksheet — GCSE Foundation

1.Tickets to a theme park cost £38.50 for an adult and £19.75 for a child. A family estimates the total cost for 4 adults and 3 children, by rounding each ticket price to the nearest £5. Work out their estimate for the total cost.

2.Work out 3/7 × 14/9. Give your answer as a fraction in its simplest form.

3.Amelia estimates 48 × 21 by working out 50 × 20 = 1,000. Work out whether her estimate is an under-estimate or an over-estimate, and by how much.

4.A garden path is measured by Jon as 12 m, correct to the nearest metre, and by Mia as 12.6 m, correct to the nearest 0.1 m. Which statement about the two measurements is correct?

5.Round 0.006852 to 2 significant figures.

6.Work out an estimate for 79.3 − 24.6, by rounding each number to the nearest whole number.

7.The mass of a parcel is 3 kg, correct to the nearest kilogram. Which of these masses is not possible for the parcel?

8.Priya has 24 red beads and 36 blue beads. She makes identical bracelets, using every bead and with none left over. Work out the greatest number of bracelets she can make.

9.A car manufacturer offers a car in 6 colours and 4 trim levels. Two colour-and-trim combinations are not available: red with sport trim, and white with sport trim. Work out how many different colour-and-trim combinations are available.

10.Work out the total cost of 3 pens at 45p each and one notebook at £2.35. Give your answer in pounds.

11.Work out 15% of £40, using 10% and 5%.

12.After a price increase of 10%, a laptop costs £330. Work out the original price.

13.A cheetah runs at a steady speed of 25 metres per second. Work out this speed in kilometres per hour.

14.Work out √49

15.4ˣ = 64. Work out the value of x.