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What is fact family number?

Updated: 9/20/2023
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12y ago

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A "fact family" is when the same 3 numbers are used in 4 different equations of addition and subtraction (2 of each) or multiplication and division (once again, 2 of each). For example: 6-4=2, 6-2=4, 4+2=6, 2+4=6. Another example would be: 3x4=12, 4x3=12, 12/4=3, 12/3=4.

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12y ago
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Q: What is fact family number?
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