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Who said that adding, subtracting, multiplying and dividing couldn't be fun?

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This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?

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The Number Jumbler can always work out your chosen symbol. Can you work out how?

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In this game for two players, you throw two dice and find the product. How many shapes can you draw on the grid which have that area or perimeter?

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

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Can you use the numbers on the dice to reach your end of the number line before your partner beats you?

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What is the smallest number of answers you need to reveal in order to work out the missing headers?

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In this game for two players, the idea is to take it in turns to choose 1, 3, 5 or 7. The winner is the first to make the total 37.

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

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Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?

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Play this game and see if you can figure out the computer's chosen number.

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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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A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

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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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Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?

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Use your knowledge of place value to try to win this game. How will you maximise your score?

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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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Have a go at this game which involves throwing two dice and adding their totals. Where should you place your counters to be more likely to win?

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Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?

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Take it in turns to make a triangle on the pegboard. Can you block your opponent?

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

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Choose four different digits from 1-9 and put one in each box so that the resulting four two-digit numbers add to a total of 100.

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A train building game for two players. Can you be the one to complete the train?

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You'll need two dice to play this game against a partner. Will Incey Wincey make it to the top of the drain pipe or the bottom of the drain pipe first?

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Skippy and Anna are locked in a room in a large castle. The key to that room, and all the other rooms, is a number. The numbers are locked away in a problem. Can you help them to get out?

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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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Given the products of adjacent cells, can you complete this Sudoku?

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Here is a chance to play a version of the classic Countdown Game.

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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.