fact-family/add-sub-within-20/easy · Sada 36
6 problems
Jméno:
Třída:
Datum:
1
Write the fact family for 9, 11, 20:
=
2
Write the fact family for 7, 12, 19:
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3
Write the fact family for 11, 9, 20:
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4
Write the fact family for 13, 4, 17:
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5
Write the fact family for 12, 2, 14:
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6
Write the fact family for 8, 1, 9:
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