fact-family/add-sub-within-20/hard · Sett 60
6 problems
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1
Write the fact family for 11, 1, 12:
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2
Write the fact family for 11, 9, 20:
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3
Write the fact family for 16, 4, 20:
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4
Write the fact family for 11, 2, 22:
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5
Write the fact family for 1, 18, 19:
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6
Write the fact family for 8, 2, 16:
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