number-bonds
子类别
number-bonds/addition-within-10-fill-one
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number-bonds/addition-within-10-fill-both
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number-bonds/addition-within-10-find-all
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number-bonds/addition-within-20-fill-one
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number-bonds/addition-within-20-fill-both
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number-bonds/multiplication-within-20-fill-one
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number-bonds/multiplication-within-20-find-all
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number-bonds/multiplication-within-50-fill-one
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To 5
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To 10
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To 20
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To 50
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To 100
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Addition Bonds
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Subtraction Bonds
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Multiplication Bonds
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