Fact Families Addition & Subtraction Worksheet With Answer Key Page 2
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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)
10 - 9 = 1
1)
9 - 6 = 3
2)
11 - 5 = 6
9 + 1 = 10
Ex.
10 - 1 = 9
6 + 3 = 9
11 - 6 = 5
1 + 9 = 10
3 + 6 = 9
5 + 6 = 11
9 - 3 = 6
1.
9 + 1 = 10
?
?
6 + 5 = 11
2.
6 + 10 = 16
3.
3)
4)
5)
10 + 6 = 16
13 - 5 = 8
11 - 3 = 8
5 + 8 = 13
16 - 10 = 6
13 - 8 = 5
3 + 8 = 11
4.
16 - 6 = 10
8 + 5 = 13
11 - 8 = 3
8 + 3 = 11
5.
?
?
?
1 + 1 = 2
6.
7 + 3 = 10
7.
6)
2 - 1 = 1
7)
10 - 3 = 7
8)
7 + 4 = 11
4 + 7 = 11
2 - 1 = 1
10 - 7 = 3
11 - 7 = 4
8.
1 + 1 = 2
3 + 7 = 10
11 - 4 = 7
9 + 9 = 18
?
?
?
9.
15 - 6 = 9
10.
8 + 9 = 17
11.
9)
10)
11)
18 - 9 = 9
9 + 6 = 15
17 - 9 = 8
18 - 9 = 9
15 - 9 = 6
17 - 8 = 9
9 + 10 = 19
12.
9 + 9 = 18
6 + 9 = 15
9 + 8 = 17
?
?
?
11 - 10 = 1
13.
14 - 10 = 4
14.
12)
19 - 10 = 9
13)
11 - 1 = 10
14)
4 + 10 = 14
10 + 9 = 19
1 + 10 = 11
10 + 4 = 14
19 - 9 = 10
10 + 1 = 11
14 - 4 = 10
?
?
?
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