Number worksheet — GCSE Foundation

1.Amelia eats 5/8 of a bar of chocolate and Oliver eats 3/4 of an identical bar. Write both amounts as eighths and write down the greater of the two fractions.

2.Work out an estimate for 89 + 52, by rounding each number to the nearest 10.

3.A number, y, is equal to 8.2 when rounded to 1 decimal place. Write down the error interval for y.

4.A café offers 3 types of soup and 4 types of bread roll. Work out how many different combinations of one soup and one bread roll are possible.

5.A school orders 187 packed lunches for a trip. Each packed lunch costs £4.85. The school has £900 to spend. By rounding each number to 1 significant figure, work out an estimate for the total cost and decide whether £900 is enough.

6.Sam compares 0.6 and 5/8 by comparing the digit 6 with the digit 5, and says that 0.6 is the larger number. Convert 5/8 to a decimal to find the correct larger value.

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

8.Work out the lowest common multiple of 4 and 6.

9.A recipe uses 160 g of flour. Sam wants to increase the amount by 1/4. Work out the new amount of flour.

10.A number, n, is a multiple of both 6 and 9. Work out the smallest possible value of n that is greater than 20.

11.In a car park the ratio of vans to cars is 2 : 7. Work out the number of vans as a fraction of the number of cars.

12.Find the missing number: ▢ ÷ 15 = 24

13.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.

14.In a box of chocolates 5/8 are milk chocolates and the rest are dark chocolates. Work out the number of dark chocolates as a fraction of the number of milk chocolates.

15.Four students work out 6 + 2 × 3. Which student has worked it out correctly?