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Try out these calculations. Are you surprised by the results?
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In these addition and subtraction games, you'll need to think strategically to get closest to the target.
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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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In each of these games, you will need a little bit of luck and your knowledge of place value to develop a winning strategy.
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Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
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Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?
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By selecting digits for an addition grid, what targets can you make?
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What happens when you add a three digit number to its reverse?
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Take any four digit number. Move the first digit to the end and move the rest along. Now add your two numbers. Did you get a multiple of 11?
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There are lots of ideas to explore in these sequences of ordered fractions.
