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Number and algebra

  • The Number System and Place Value
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  • Fractions, Decimals, Percentages, Ratio and Proportion
  • Properties of Numbers
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  • Algebraic expressions, equations and formulae
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Geometry and measure

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Probability and statistics

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Working mathematically

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Advanced mathematics

  • Decision Mathematics and Combinatorics
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For younger learners

  • Early Years Foundation Stage

Equations and Formulae - Stage 3

What's it Worth?

Age 11 to 16
Challenge Level Yellow star

There are lots of different methods to find out what the shapes are worth - how many can you find?

Temperature

Age 11 to 14
Challenge Level Yellow starYellow star

Is there a temperature at which Celsius and Fahrenheit readings are the same?

Your Number Was...

Age 11 to 14
Challenge Level Yellow star

Think of a number and follow my instructions. Tell me your answer, and I'll tell you what you started with! Can you explain how I know?

Equations and Formulae - Short Problems

Age 11 to 16

A collection of short problems on equations and formulae.

Fruity Totals

Age 7 to 16
Challenge Level Yellow star

In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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