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Year 6 · Maths · Percentages · Lesson 2

Percentages of amounts

Find percentages of amounts without a calculator by building from 50%, 25%, 10%, 5% and 1%, including money and measures.

Whiteboard video lesson: Percentages of amounts

18-minute video lesson

Teaching, worked examples and 20 practice questions solved step by step.

Watch free for a month

What your child will learn

  • Find 50%, 25%, 10%, 5% and 1%
  • Build other percentages
  • Find percentages of money and measures
  • Solve word problems

The method

  1. Find 10% (or 50%, 25%, 1%).
  2. Build the percentage.
  3. Add the parts.
  4. Check: sensible?

Key words: percentage, per cent, amount, discount, build.

Worked examples

The first three practice questions from the lesson, with every step.

Question 1

Work out 50% of 46.

  1. Step 1: 50% = half: 46 ÷ 2 = 23

Answer: 23

Question 2

Work out 10% of 90.

  1. Step 1: 10% = 90 ÷ 10 = 9

Answer: 9

Question 3

Work out 10% of £25.

  1. Step 1: 10% = £25 ÷ 10 = £2.50

Answer: £2.50