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Year 6 Percentages: A Fairground Adventure with Cento

Year 6 Percentages: A Fairground Adventure with Cento

Learn Year 6 percentages: match fractions, decimals and percentages, find 15% of 360 and compare scores and deals at a fairground.

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What you'll learn

  • Recall equivalents such as 3/4 = 0.75 = 75%
  • Write small percentages as decimals, knowing 5% is 0.05
  • Turn scores like 17 out of 20 into a percentage
  • Find 50%, 25%, 10% and 1% of any amount
  • Build percentages like 15% of 360 from 10% and 5%
  • Compare percentage discounts with money-off deals

Chapter by chapter

  1. Recalling equivalent fractions, decimals and percentages Free to try

    Year 6 maths · 1

  2. Using fraction, decimal and percentage equivalents in real life

    Year 6 maths · 1

  3. Finding 50%, 25%, 10% and 1% of an amount

    Year 6 maths · 2 Year 6 maths · 1

  4. Finding any percentage of an amount, like 15% of 360

    Year 6 maths · 2

  5. Using percentages to compare scores, deals and choices

    Year 6 maths · 2 Year 6 maths · 1

  6. Grand Fair Challenge: percentages quiz (10 questions)

See every Maths chapter in the chapter library

What the chapters cover in the national curriculum in England:

  1. Year 6 maths: Recall and use equivalences between simple fractions, decimals and percentages, including in different contexts
  2. Year 6 maths: Solve problems involving the calculation of percentages and the use of percentages for comparison

About this adventure

The Percentage Fair is an interactive maths game that teaches children aged 10–11 the Year 6 percentages curriculum: matching fractions, decimals and percentages, finding percentages of amounts and using percentages to compare.

Cento the fair robot guides players round five fairground stalls. They shade a hundred square to see that one quarter is 0.25 and 25%, turn hoopla scores out of 20 or 25 into percentages, and slice a bar model to find 50%, 25%, 10% and 1% of an amount. At the Block Builder they stack 10%, 5% and 1% blocks to work out percentages such as 15% of 360.

The last stall shows why percentages make comparisons fair, from test scores with different totals to 20% off versus £10 off. Spoken hints target common mistakes, like reading 0.5 as 5%, and a 10-question challenge on the big wheel checks everything.

Questions and answers

How do you find 15% of a number?

Find 10% by dividing the number by 10, then halve that to get 5%, and add the two together. For 15% of 360, 10% is 36 and 5% is 18, so the answer is 54.

Why is 0.5 equal to 50% and not 5%?

Because 0.5 means 5 tenths, and 5 tenths is the same as 50 hundredths. Per cent means out of 100, so 50 hundredths is 50%. Only 0.05, which is 5 hundredths, equals 5%.

How do you turn a test score into a percentage?

Make the total 100 by multiplying both numbers by the same amount. For 17 out of 20, multiply both by 5 to get 85 out of 100, which is 85%. This lets you compare scores out of different totals fairly.

What age is this percentages game for?

It is written for children aged 10–11 in Year 6 and follows the national curriculum in England. Two quick warm-ups on what per cent means and dividing by 10 and 100 help anyone who needs a refresher first.

What does the Percentage Fair game include and how long does it take?

The game has five chapters, two optional warm-ups and a 10-question final challenge, with spoken narration throughout. Playing everything takes about 50 minutes, and each chapter can be played on its own in around 10 minutes.

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