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

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There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?

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Four bags contain a large number of 1s, 3s, 5s and 7s. Pick any ten numbers from the bags above so that their total is 37.

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This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!

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How can you arrange the 5 cubes so that you need the smallest number of Brush Loads of paint to cover them? Try with other numbers of cubes as well.

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A game in which players take it in turns to choose a number. Can you block your opponent?

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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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What can you see? What do you notice? What questions can you ask?

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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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There are nasty versions of this dice game but we'll start with the nice ones...

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