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Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?

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What do you see as you watch this video? Can you create a similar video for the number 12?

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Watch the video of Fran re-ordering these number cards. What do you notice? Try it for yourself. What happens?

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Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.

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Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.

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Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

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Dotty Six is a simple dice game that you can adapt in many ways.

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Try out this number trick. What happens with different starting numbers? What do you notice?

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How many possible necklaces can you find? And how do you know you've found them all?

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Place the numbers from 1 to 9 in the squares below so that the difference between joined squares is odd. How many different ways can you do this?

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Can you put the numbers 1-5 in the V shape so that both 'arms' have the same total?

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Does this 'trick' for calculating multiples of 11 always work? Why or why not?

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Try out some calculations. Are you surprised by the results?

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An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.