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)
6 + 4 = 10
2)
14 - 10 = 4
3)
2 + 5 = 7
1.
10 - 6 = 4
14 - 4 = 10
7 - 5 = 2
4 + 6 = 10
4 + 10 = 14
7 - 2 = 5
2.
A. 16 - 4 = 12
A. 24 - 4 = 20
A. 5 + 2 = 7
B. 10 + 6 = 16
B. 4 + 14 = 10
B. 6 + 2 = 8
3.
C. 5 + 6 = 11
C. 15 - 10 = 5
C. 7 + 2 = 9
D. 10 - 4 = 6
D. 10 + 4 = 14
D. 7 - 2 = 2
4.
5.
4)
5)
6)
5 + 8 = 13
11 - 9 = 2
18 - 8 = 10
6.
8 + 5 = 13
2 + 9 = 11
10 + 8 = 18
13 - 5 = 8
11 - 2 = 9
18 - 10 = 8
7.
A. 13 - 8 = 5
A. 9 + 2 = 11
A. 8 - 18 = 10
B. 5 + 13 = 8
B. 11 + 2 = 13
B. 18 - 8 = 8
8.
C. 21 - 5 = 16
C. 2 - 11 = 9
C. 18 + 8 = 26
D. 6 + 8 = 14
D. 12 - 2 = 10
D. 8 + 10 = 18
9.
10.
7)
8)
9)
7 + 6 = 13
11 - 10 = 1
2 + 8 = 10
11.
6 + 7 = 13
1 + 10 = 11
10 - 8 = 2
13 - 6 = 7
10 + 1 = 11
10 - 2 = 8
12.
A. 13 + 6 = 19
A. 10 - 11 = 1
A. 8 + 10 = 2
B. 6 - 13 = 7
B. 21 - 1 = 20
B. 8 + 2 = 10
C. 19 - 7 = 12
C. 12 - 10 = 2
C. 2 - 10 = 8
D. 13 - 7 = 6
D. 11 - 1 = 10
D. 9 + 2 = 11
10)
14 - 8 = 6
11)
6 + 5 = 11
12)
3 + 2 = 5
8 + 6 = 14
5 + 6 = 11
5 - 3 = 2
6 + 8 = 14
11 - 5 = 6
5 - 2 = 3
A. 14 + 8 = 22
A. 11 - 6 = 5
A. 2 - 5 = 3
B. 15 - 8 = 7
B. 11 - 5 = 5
B. 2 + 3 = 5
C. 7 + 8 = 15
C. 5 - 11 = 6
C. 3 + 5 = 2
D. 14 - 6 = 8
D. 12 - 5 = 7
D. 6 - 2 = 4
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