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Fact Families

# Fact Families - Inverse Operation An opposite operation...

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Fact Families By Monica Yuskaitis

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Definitions Addend - Any number being added. 6 + 5 = 11 Inverse Operation - An opposite operation that undoes another. 5 + 4 = 9 9 - 5 = 4
Addition/Subtraction Fact Families are found by: Starting with a simple addition fact. ( 2 + 5 = 7 ) Changing the addends around. ( 5 + 2 = 7 ) Writing the Inverse operations for both. ( 7 - 2 = 5 & 7 - 5 = 2 )

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What are the 4 members of the Fact Family of 3 + 4 = 7? 3 + 4 = 7 4 + 3 = 7 7 - 3 = 4 7 - 4 = 3
What are the 4 members of the Fact Family of 8 + 1 = 9? 8 + 1 = 9 1 + 8 = 9 9 - 8 = 1 9 - 1 = 8

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What are the 4 members of the Fact Family of 11 + 5 = 16? 11 + 5 = 16 5 + 11 = 16 16 - 11 = 5 16 - 5 = 11
What are the 4 members of the Fact Family of 9 + 7 = 16? 9 + 7 = 16 7 + 9 = 16 16 - 9 = 7 16 - 7 = 9

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What are the 4 members of the Fact Family of 12 + 7 = 19? 12 + 7 = 19 7 + 12 = 19 19 - 12 = 7 19 - 7 = 12
Definitions Multiplicand - The numbers being multiplied. 4 x 8 = 32

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Unformatted text preview: Inverse Operation - An opposite operation that undoes another. 4 x 8 = 32 32 / 4 = 8 Multiplication/Division Fact Families are found by: ◗ Starting with a simple multiplication fact. ( 3 x 9 = 27 ) ◗ Changing the multiplicands around. ( 9 x 3 = 27 ) ◗ Writing the Inverse operations for both. ( 27 / 3 = 9 & 27 / 9 = 3 ) What are the 4 members of the Fact Family of 3 x 7 = 21? ◗ 3 x 7 = 21 ◗ 7 x 3 = 21 ◗ 21 / 3 = 7 ◗ 21 / 7 = 3 What are the 4 members of the Fact Family of 6 x 4 = 24? ◗ 6 x 4 = 24 ◗ 4 x 6 = 24 ◗ 24 / 6 = 4 ◗ 24 / 4 = 6 What are the 4 members of the Fact Family of 7 x 8 = 56? ◗ 7 x 8 = 56 ◗ 8 x 7 = 56 ◗ 56 / 7 = 8 ◗ 56 / 8 = 7 What are the 4 members of the Fact Family of 9 x 7 = 63? ◗ 9 x 7 = 63 ◗ 7 x 9 = 63 ◗ 63 / 9 = 7 ◗ 63 / 7 = 9 What are the 4 members of the Fact Family of 6 x 7 = 42? ◗ 6 x 7 = 42 ◗ 7 x 6 = 42 ◗ 42 /6 = 7 ◗ 42 / 7 = 6...
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Fact Families - Inverse Operation An opposite operation...

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