Number worksheet — GCSE Foundation

1.A restaurant offers a lunch deal of one starter from 5 options, one main from 6 options and one dessert from 3 options. Work out how many different lunch deals are possible.

2.A length, L cm, has the error interval 24.5 ≤ L < 25.5. Write down the degree of accuracy to which the length was measured.

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

4.The number of pages in a book is 240, correct to the nearest 10 pages. Write down the error interval for the actual number of pages, n.

5.Which of these numbers lies between −8 and −5 on a number line?

6.Write '3.2 million' as a number in figures.

7.A washing machine costs £320 before VAT. VAT is charged at 20%. Work out the total price including VAT.

8.Which of these numbers lies between −4 and −1 on a number line?

9.Work out √144 − 2 × 3 + √25

10.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.

11.A tap fills a 20 litre bucket in 2 minutes 30 seconds. Work out the rate of flow, in litres per minute.

12.Work out the value of √49 + ∛27

13.A student always writes the digits after the decimal point over a denominator of 100, whatever the number of decimal places. Using this wrong rule, they convert 0.9 to a fraction. Work out the correct fraction that 0.9 is equal to, giving your answer in its simplest form.

14.Work out an estimate for 79.3 − 24.6, by rounding each number to the nearest whole number.

15.A charity raises money from a raffle and a cake sale in the ratio 5 : 3. Altogether the charity raises £320. Work out how much money the cake sale raised.