Number worksheet — GCSE Foundation

1.Work out an estimate for 312 × 19, by rounding each number to 1 significant figure.

2.A tin of soup has a mass of 450 g. A bag of potatoes has a mass of 2.6 kg. Work out the total mass, in kilograms.

3.A gardener has 42 tulip bulbs and 56 daffodil bulbs. She plants them in rows, with every row containing the same number of tulip bulbs and the same number of daffodil bulbs, and no bulbs left over. Work out the greatest number of rows she can plant.

4.Oliver drives 95 km at an average speed of 50 km/h. Work out an estimate for the time the journey takes, by rounding the distance to the nearest 100 km.

5.A plumber charges a call-out fee of £45 and then £28 for each hour she works. She is at a house from 09:15 until 12:45. Work out the total charge.

6.Round 24,681 to the nearest 1,000.

7.Work out the value of √49 + ∛27

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

9.Work out an estimate for 37 × 84, by rounding each number to 1 significant figure.

10.Write 0.00072 in standard form.

11.Postage on a parcel is calculated as £4.60, correct to the nearest 20p. Which of these could not be the actual cost of the postage?

12.Work out (−3) × 4 + 2 × (−5)

13.A jumper is reduced by 15% in a sale to a price of £42.50. Work out the original price.

14.Write the mixed number 2 1/4 as an improper fraction.

15.Work out ∛64.