fact-family/add-sub-within-20/expert · Sett 23
6 problems
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Dato:
1
Write the fact family for 4, 2, 6:
=
2
Write the fact family for 4, 10, 40:
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3
Write the fact family for 12, 4, 48:
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4
Write the fact family for 9, 11, 20:
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5
Write the fact family for 3, 3, 9:
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6
Write the fact family for 8, 12, 20:
=