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How will you work out which numbers have been used to create this multiplication square?

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This big box adds something to any number that goes into it. If you know the numbers that come out, what addition might be going on in the box?

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A resource to try once children are familiar with number lines, and they have begun to use them for addition. It could be a good way to talk about subtraction. Leah and Tom each have a number line. Can you work out where their counters will land?

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Annie and Ben are playing a game with a calculator. What was Annie's secret number?

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How many starfish could there be on the beach, and how many children, if I can see 28 arms?

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As you come down the ladders of the Tall Tower you collect useful spells. Which way should you go to collect the most spells?

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This is a game for two players. Can you find out how to be the first to get to 12 o'clock?

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Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?

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An investigation looking at doing and undoing mathematical operations focusing on doubling, halving, adding and subtracting.

Challenge Level

Have a go at this well-known challenge. Can you swap the frogs and toads in as few slides and jumps as possible?

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Can you work out how to win this game of Nim? Does it matter if you go first or second?