Fact Families (Addition & Subtraction) - One atta Time

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Determine which letter best represents the missing fact from the fact family.

69 + 20 = 89

20 + 69 = 89

89 - 69 = 20

89 + 20 = 109 89 - 20 = 69 109 - 69 = 40 69 + 89 = 20

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