fact-family/add-sub-within-20/expert · Sæt 71
6 problems
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1
Write the fact family for 12, 10, 120:
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2
Write the fact family for 12, 4, 48:
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3
Write the fact family for 12, 9, 108:
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4
Write the fact family for 8, 6, 48:
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5
Write the fact family for 4, 1, 5:
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6
Write the fact family for 18, 1, 19:
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