fact-family/add-sub-within-20/hard · Sett 81
6 problems
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1
Write the fact family for 6, 10, 60:
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2
Write the fact family for 6, 4, 24:
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3
Write the fact family for 8, 9, 72:
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4
Write the fact family for 2, 5, 10:
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5
Write the fact family for 8, 10, 80:
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6
Write the fact family for 2, 10, 20:
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