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What Is a Fact Family?
A fact family is a group of related addition and subtraction facts that use the same three numbers. For 3, 5, and 8: 3 + 5 = 8, 5 + 3 = 8, 8 - 3 = 5, 8 - 5 = 3.
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Math — Subtraction to 10
A fact family is a group of related addition and subtraction facts that use the same three numbers. For 3, 5, and 8: 3 + 5 = 8, 5 + 3 = 8, 8 - 3 = 5, 8 - 5 = 3.