This task is about using +, -, x and รท to work out algorithms.
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When Joe's young brother scribbled over his maths homework, Joe put a
 to replace what he could not read, then completed his work.
Fill in the gaps to show how Joe solved the problems.
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| a) |
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b) |
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c) |
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| d) |
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e) |
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f) |
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| g) |
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h) |
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i) |
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| j) |
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k) |
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l) |
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