fact-family/add-sub-within-20-write-all · Sæt 44
6 problems
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1
Write the fact family for 13, 2, 15:
=
2
Write the fact family for 10, 5, 15:
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3
Write the fact family for 17, 3, 20:
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4
Write the fact family for 2, 2, 4:
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5
Write the fact family for 12, 6, 18:
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6
Write the fact family for 5, 5, 10:
=