Number worksheet — GCSE Foundation

1.Four weather stations each recorded their lowest overnight temperature. Which of these readings is the lowest?

2.A company sells 4 × 10³ items per day, each priced at £2.50. It operates for 3 × 10² days a year. Work out the company's total revenue for the year. Give your answer in standard form.

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.Maya buys 4 plants at £3.20 each and a bag of compost for £6.75. She pays with a £20 note. Work out her change.

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

6.A cinema has 21 rows of seats with 29 seats in each row. Work out an estimate for the number of people the cinema can hold, by rounding each number to 1 significant figure.

7.Work out the highest common factor of 15 and 25.

8.Work out an estimate for 2.9² + 3.1², by rounding each number to the nearest whole number.

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

10.Round 0.006852 to 2 significant figures.

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

12.Write 45,000 in standard form.

13.Work out the lowest common multiple of 9 and 15.

14.Simplify x⁶ ÷ x²

15.A cake recipe needs 3/4 of a kilogram of sugar. Aisha wants to make half the recipe. Work out how much sugar she needs, giving your answer as a fraction of a kilogram in its simplest form.