Number worksheet — GCSE Foundation

1.Oliver uses his calculator to work out 25% of 80 and writes down 320. Without using a calculator, work out the correct value of 25% of 80.

2.The attendance at a football match is 23,000, correct to the nearest thousand. Which of these attendances is not possible for the match?

3.Work out 3 + 4 × (−2).

4.A sponsored walk raised £350 for charity. 20% of the money raised is spent on equipment. Work out how much is spent on equipment.

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

6.In a school long jump competition Priya's jump is recorded as 3.8 m and Nadia's jump is recorded as 3.9 m, each correct to the nearest 0.1 m. Priya says she may have jumped further than Nadia. Decide whether Priya is right, and give a reason for your answer.

7.A circle has a radius of 5 cm. Work out the exact circumference of the circle, in terms of π.

8.In standard form, 2,000 is written as 2 × 10ⁿ. Write down the value of n.

9.Work out the value of ∛8.

10.In a school, 3/5 of the students study French. Of these students, 2/3 also study Spanish. What fraction of all the students study both French and Spanish?

11.A flight departs at 21:35 and lands at 06:10 the following morning. Work out the total flight time.

12.Work out 18 − 4 × 2

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

14.A three-digit code is made using the digits 1, 2 and 3, and each digit may be used more than once. Work out how many different three-digit codes can be made.

15.Two-digit numbers are made using the digits 1, 2, 3 and 4, and no digit may be used twice in the same number. Work out how many different two-digit numbers can be made.