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Number and algebra

  • The Number System and Place Value
  • Calculations and Numerical Methods
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Working mathematically

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Advanced mathematics

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For younger learners

  • Early Years Foundation Stage

Balancing

Explore our interactive balances in all their different forms in this feature - a seesaw in the woods; a number balance with hooks for identical weights; a number balance with a tray on each side and a hanging mobile.

We hope that these activities deepen your understanding of what it means when we say that two amounts are equal.

Seesaw Shenanigans

Age 3 to 7
Challenge Level Yellow star
A group of animals has made a seesaw in the woods. How can you make the seesaw balance?

Number Balance

Age 5 to 7
Challenge Level Yellow star
Can you hang weights in the right place to make the the number balance balanced?

Are You Well Balanced?

Age 5 to 7
Challenge Level Yellow star
Can you work out how to make each side of this balance equally balanced? You can put more than one weight on a hook.

Equivalent Pairs

Age 5 to 7
Challenge Level Yellow star
Can you match pairs of cards which show the same amount?

Sweetie Box

Age 5 to 11
Challenge Level Yellow star
Max and Bryony both have a box of sweets. What do you know about the number of sweets they each have?

Interactive Balance

Age 5 to 11
Challenge Level Yellow star
In this simulation of a balance, you can drag numbers and parts of number sentences on to the trays. Have a play!

True or False?

Age 7 to 11
Challenge Level Yellow star
Without doing lots of calculations, can you decide which of these number sentences are true? How do you know?

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Digging Into Geometry

Dig deeply into geometrical ideas by having a go at the tasks in this Primary student feature.

More Playing with Numbers Upper Primary

More resources to support understanding multiplication and division through playing with numbers

Playing with Dice

We're starting the school year with some of our favourite dice activities.

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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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