Numbers

2-23 Fact Families

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You can form fact families with the addition and subtraction facts.

For example:

11 - 5 = 6,  11 - 6 = 5,  5 + 6 = 11,  and  6 + 5 =11.

 

Complete the fact families below.

 

10 + 5 = 15 5 + 10 = 15
spacer.gif (42 bytes)
12 - 7 = 5 12 - 5 =
spacer.gif (42 bytes)
17 - 9 = 9 + 8 = 
spacer.gif (42 bytes)
16 - 9 = 16 - 7 =
spacer.gif (42 bytes)
13 - 6 = 6 + 7 =
spacer.gif (42 bytes)
11 - 5 = 11 - 6 =
spacer.gif (42 bytes)
14 - 8 = 14 - 6 =
spacer.gif (42 bytes)
18 - 7 = 18 - 11 =

 

15 - 5 = 10 15 - 10 =
spacer.gif (42 bytes)
5 + 7 = 7 + 5 =
spacer.gif (42 bytes)
17 - 8 = 8 + 9 =
spacer.gif (42 bytes)
7 + 9 = 9 + 7 =
spacer.gif (42 bytes)
13 - 7 = 7 + 6 =
spacer.gif (42 bytes)
5 + 6 = 6 + 5 =
spacer.gif (42 bytes)
6 + 8 = 8 + 6 =
spacer.gif (42 bytes)
7 + 11 = 11 + 7 =

 
 

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