Number worksheet — GCSE Foundation

1.Work out 3 + 4 × (−2).

2.In a fruit basket the ratio of bananas to oranges is 2 : 5. What fraction of the fruit are oranges?

3.Amelia has 49 boxes of apples with 21 apples in each box. Work out an estimate for the total number of apples, by rounding each number to 1 significant figure.

4.A coach journey has a 55 minute first leg, a 20 minute break and a 40 minute second leg. The coach leaves at 13:25. Work out the arrival time, using the 24-hour clock.

5.Which of these is equal to 5³?

6.Work out 5 + 3 × (9 − 6)

7.A garden has flowers, herbs and vegetables in the ratio 2 : 3 : 4. What fraction of the garden is not vegetables?

8.Work out √25 + 4² − 12 ÷ 3

9.Ava measures a metal rod and records its length as 15 cm, correct to the nearest centimetre. Ben measures the same rod and records its length as 14.8 cm, correct to the nearest 0.1 cm. Decide whether both records can be correct, and give a reason for your answer.

10.Work out how many factors 100 has.

11.A fruit bowl contains apples, pears and plums in the ratio 3 : 4 : 5. What fraction of the fruit are not plums?

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

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

14.Work out 4π + 2π, giving your answer as a multiple of π.

15.Work out (−36) ÷ (−6) × 2