fact-family/add-sub-within-20-write-all · Sæt 30
6 problems
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1
Write the fact family for 19, 1, 20:
=
2
Write the fact family for 12, 1, 13:
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3
Write the fact family for 6, 6, 12:
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4
Write the fact family for 5, 15, 20:
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5
Write the fact family for 5, 3, 8:
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6
Write the fact family for 9, 1, 10:
=