Fact Families. On the next 4 slides create examples of addition/subtraction fact families.

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Presentation transcript:

Fact Families

On the next 4 slides create examples of addition/subtraction fact families.

Addition/Subtraction Fact Families are found by: w Starting with a simple addition fact. ( = 7)7) w Changing the addends around. (5 + 2 = 7)7) w Writing the Inverse operations for both. (7 - 2 = 5 & = 2)2)

What are the 4 members of the Fact Family of = 7? w3w3 + 4 = 7 w4w4 + 3 = 7 w7w7 - 3 = 4 w7w7 - 4 = 3

What are the 4 members of the Fact Family of = 9? w8w8 + 1 = 9 w1w1 + 8 = 9 w9w9 - 8 = 1 w9w9 - 1 = 8

What are the 4 members of the Fact Family of = 16? w1w = 16 w5w = 16 w1w = 5 w1w = 11

What are the 4 members of the Fact Family of = 16? w9w9 + 7 = 16 w7w7 + 9 = 16 w1w = 7 w1w = 9

What are the 4 members of the Fact Family of = 19? w1w = 19 w7w = 19 w1w = 7 w1w = 12