Fact Families Addition & Subtraction Worksheet With Answer Key
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1
2
3Name:
Fact Families (Addition & Subtraction)
Determine which letter best represents the missing fact from the fact family.
A n s w e r s
1)
14 - 4 = 10
2)
1 + 6 = 7
3)
12 - 4 = 8
1.
10 + 4 = 14
7 - 1 = 6
8 + 4 = 12
4 + 10 = 14
6 + 1 = 7
4 + 8 = 12
2.
A. 4 + 14 = 10
A. 7 + 1 = 8
A. 12 - 4 = 4
B. 14 + 10 = 24
B. 7 - 6 = 1
B. 12 + 4 = 16
3.
C. 14 - 10 = 4
C. 7 - 1 = 1
C. 9 + 4 = 13
D. 15 - 10 = 5
D. 1 - 7 = 6
D. 12 - 8 = 4
4.
5.
4)
5)
6)
19 - 10 = 9
12 - 10 = 2
13 - 8 = 5
6.
9 + 10 = 19
10 + 2 = 12
8 + 5 = 13
10 + 9 = 19
2 + 10 = 12
13 - 5 = 8
7.
A. 9 + 19 = 10
A. 12 - 2 = 2
A. 18 - 8 = 10
B. 19 - 9 = 10
B. 12 + 2 = 14
B. 8 + 13 = 5
8.
C. 29 - 9 = 20
C. 12 - 2 = 10
C. 9 + 5 = 14
D. 10 + 10 = 20
D. 10 + 12 = 2
D. 5 + 8 = 13
9.
10.
7)
8)
9)
3 + 7 = 10
14 - 6 = 8
9 - 4 = 5
11.
7 + 3 = 10
14 - 8 = 6
9 - 5 = 4
10 - 7 = 3
6 + 8 = 14
4 + 5 = 9
12.
A. 10 - 3 = 7
A. 9 + 6 = 15
A. 5 + 4 = 9
B. 3 - 10 = 7
B. 8 + 6 = 14
B. 9 + 4 = 13
C. 10 - 3 = 3
C. 14 - 6 = 6
C. 10 - 4 = 6
D. 7 + 10 = 3
D. 6 - 14 = 8
D. 13 - 5 = 8
10)
9 - 2 = 7
11)
18 - 10 = 8
12)
1 + 9 = 10
7 + 2 = 9
10 + 8 = 18
10 - 9 = 1
9 - 7 = 2
8 + 10 = 18
9 + 1 = 10
A. 9 - 7 = 7
A. 18 - 8 = 10
A. 10 + 1 = 11
B. 7 - 9 = 2
B. 18 - 8 = 8
B. 10 - 1 = 1
C. 2 + 7 = 9
C. 26 - 10 = 16
C. 10 - 1 = 9
D. 9 + 7 = 16
D. 11 + 8 = 19
D. 11 - 1 = 10
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