Fact Families Addition & Subtraction Worksheet With Answer Key Page 18
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20Answer Key
Name:
Fact Families (Addition & Subtraction)
Fill in the missing fact from the fact family.
A n s w e r s
Ex)
9 - 1 = 8
1)
8 - 5 = 3
2)
2 - 1 = 1
1 + 8 = 9
Ex.
9 - 8 = 1
5 + 3 = 8
2 - 1 = 1
8 + 1 = 9
8 - 3 = 5
1 + 1 = 2
3 + 5 = 8
1.
1 + 8 = 9
?
?
1 + 1 = 2
2.
5 + 5 = 10
3.
3)
4)
5)
10 - 5 = 5
9 + 4 = 13
1 + 5 = 6
13 - 4 = 9
10 - 5 = 5
4 + 9 = 13
6 - 1 = 5
4.
5 + 5 = 10
13 - 9 = 4
6 - 5 = 1
5 + 1 = 6
5.
?
?
?
7 - 3 = 4
6.
6 - 3 = 3
7.
6)
4 + 3 = 7
7)
3 + 3 = 6
8)
2 + 8 = 10
10 - 8 = 2
7 - 4 = 3
6 - 3 = 3
10 - 2 = 8
8.
3 + 4 = 7
3 + 3 = 6
8 + 2 = 10
4 + 6 = 10
?
?
?
9.
2 + 5 = 7
10.
11 - 3 = 8
11.
9)
10)
11)
6 + 4 = 10
5 + 2 = 7
3 + 8 = 11
10 - 6 = 4
7 - 5 = 2
11 - 8 = 3
17 - 9 = 8
12.
10 - 4 = 6
7 - 2 = 5
8 + 3 = 11
?
?
?
7 + 4 = 11
13.
4 - 2 = 2
14.
12)
17 - 8 = 9
13)
4 + 7 = 11
14)
2 + 2 = 4
9 + 8 = 17
11 - 7 = 4
4 - 2 = 2
8 + 9 = 17
11 - 4 = 7
2 + 2 = 4
?
?
?
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