Numbers

1-47 The Fact Families 1 to 10

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A fact family is a group of related math facts.

Addition and subtraction are related fact families.

 

3 + 4 = 7 AND 4 + 3 = 7

7 - 3 = 4 AND 7 - 4 = 3

These four facts are a fact family.

 

2 + 3 = 5 AND 3 + 2 = 5

5 - 2 = 3 AND 5 - 3 = 2

These four facts are a fact family

 

Fill in the boxes.  Find the related fact family.

 

1 + 0 = 1 + 1 = 1
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1 + 1 = 2 - 1 = 1
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2 + 1 = 3 + 2 = 3
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3 - 1 = 2 3 - 2 =
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4 - 3 = 1 4 - = 3
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3 + 1 = 4 1 + = 4
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2 + 3 = 5 + 2 = 5
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5 - 3 = 2 - 2 = 3
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4 + 2 = 6 + 4 = 6
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6 - 4 = 2 6 - 2 =
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5 + 2 = 7 + 5 = 7
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7 - 2 = 5 - 5 = 2
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3 + 5 = 8 + 3 = 8
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8 - 3 = 5 8 - = 3
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7 + 2 = 9 + 7 = 9
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9 - 7 = 2 9 - = 7
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6 + 4 = 10 + 6 = 10
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10 - 4 = 6 10 - = 4

 

 

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