Percentages

There are 30 NRICH Mathematical resources connected to Percentages
Would You Rather?
problem
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Would you rather?

Age
7 to 11
Challenge level
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Would you rather: Have 10% of £5 or 75% of 80p? Be given 60% of 2 pizzas or 26% of 5 pizzas?

Doughnut percents
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Doughnut percents

Age
7 to 14
Challenge level
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A task involving the equivalence between fractions, percentages and decimals which depends on members of the group noticing the needs of others and responding.
Planning a School Trip
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Planning a school trip

Age
7 to 11
Challenge level
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You are organising a school trip and you need to write a letter to parents to let them know about the day. Use the cards to gather all the information you need.
A Change in Code
problem
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A change in code

Age
14 to 16
Challenge level
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Can you find the percentage increase if the results appear in code?
Dating made Easier
problem
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Dating made easier

Age
14 to 16
Challenge level
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If a sum invested gains 10% each year how long before it has doubled its value?
The Legacy
problem
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The legacy

Age
14 to 16
Challenge level
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Your school has been left a million pounds in the will of an ex- pupil. What model of investment and spending would you use in order to ensure the best return on the money?
Mathland Election
problem
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Mathland election

Age
11 to 14
Challenge level
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A political commentator summed up an election result. Given that there were just four candidates and that the figures quoted were exact find the number of votes polled for each candidate.
Percentage Unchanged
problem

Percentage unchanged

Age
14 to 16
Challenge level
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If the base of a rectangle is increased by 10% and the area is unchanged, by what percentage is the width decreased by ?