fact-family/add-sub-within-20/expert · Sett 66
6 problems
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1
Write the fact family for 4, 6, 24:
=
2
Write the fact family for 12, 7, 19:
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3
Write the fact family for 19, 1, 20:
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4
Write the fact family for 2, 4, 6:
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5
Write the fact family for 1, 7, 8:
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6
Write the fact family for 9, 3, 27:
=