Topics / Maths

Money

Money problems combine decimals, multiplication, percentages and best-value comparison in realistic settings. Pounds and pence are just decimals, so careful arithmetic wins the marks.

What is tested

  • Totals, change and multiple purchases
  • Fractions and percentages of money
  • Best-value comparisons and unit prices

Worked example

Three books cost £2.45 each. How much change from £10?

  1. Total: 3 × £2.45 = £7.35.
  2. Change: £10 − £7.35 = £2.65.

Answer: £2.65

Exam-day checklist

  • Work in pence for tricky decimal sums, then convert back.
  • For best value, find the price of ONE unit.
  • Write £ and two decimal places in the answer.
  • Re-read: total, change, or amount left?

Common mistakes

  • Writing £2.5 instead of £2.50.
  • Comparing total prices when quantities differ.
  • Subtracting the wrong way round.

Try it yourself

1. £45 is shared and Ali gets 2/5. How much does Ali get?

Show answer

£18

45 ÷ 5 = 9, and 9 × 2 = 18.

2. Which is better value: 6 pens for £2.10 or 10 pens for £3.40?

Show answer

10 pens for £3.40

£2.10 ÷ 6 = 35p each; £3.40 ÷ 10 = 34p each.

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More topic guides

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