fact-family/mixed-within-20-fill-blanks · Sæt 21
6 problems
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1
Write the fact family for 4, 9, 13:
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2
Write the fact family for 11, 9, 20:
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3
Write the fact family for 3, 13, 16:
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4
Write the fact family for 6, 7, 13:
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5
Write the fact family for 12, 6, 18:
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6
Write the fact family for 15, 2, 17:
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