Fact Families Addition & Subtraction Worksheet With Answer Key Page 2
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1
2Answer Key
Name:
Fact Families (Addition & Subtraction)
Determine which letter best represents the missing fact from the fact family.
A n s w e r s
1)
8 + 2 = 10
2)
7 + 6 = 13
3)
12 - 3 = 9
B
1.
2 + 8 = 10
6 + 7 = 13
9 + 3 = 12
10 - 8 = 2
13 - 6 = 7
3 + 9 = 12
D
2.
A. 18 - 2 = 16
A. 19 - 7 = 12
A. 12 - 9 = 3
A
B. 10 - 2 = 8
B. 8 + 6 = 14
B. 4 + 9 = 13
3.
C. 10 - 8 = 8
C. 6 - 13 = 7
C. 12 - 9 = 9
C
D. 3 + 8 = 11
D. 13 - 7 = 6
D. 12 + 9 = 21
4.
D
5.
4)
5)
6)
10 - 3 = 7
9 + 4 = 13
6 + 3 = 9
C
6.
7 + 3 = 10
13 - 4 = 9
3 + 6 = 9
10 - 7 = 3
13 - 9 = 4
9 - 6 = 3
B
7.
A. 8 + 3 = 11
A. 22 - 4 = 18
A. 15 - 3 = 12
B. 11 - 3 = 8
B. 4 + 13 = 9
B. 6 - 9 = 3
B
8.
C. 3 + 7 = 10
C. 14 - 9 = 5
C. 9 - 3 = 6
D
D. 7 + 10 = 3
D. 4 + 9 = 13
D. 10 - 6 = 4
9.
B
10.
7)
8)
9)
1 + 5 = 6
7 + 4 = 11
7 - 2 = 5
B
11.
6 - 5 = 1
11 - 4 = 7
7 - 5 = 2
6 - 1 = 5
11 - 7 = 4
5 + 2 = 7
A
12.
A. 5 + 6 = 1
A. 11 - 4 = 4
A. 2 - 7 = 5
B. 5 + 1 = 6
B. 4 + 7 = 11
B. 6 + 2 = 8
C. 1 - 6 = 5
C. 15 - 7 = 8
C. 5 + 7 = 2
D. 6 - 1 = 1
D. 11 + 4 = 15
D. 2 + 5 = 7
10)
16 - 9 = 7
11)
15 - 6 = 9
12)
14 - 9 = 5
16 - 7 = 9
6 + 9 = 15
14 - 5 = 9
9 + 7 = 16
9 + 6 = 15
9 + 5 = 14
A. 17 - 7 = 10
A. 9 - 15 = 6
A. 5 + 9 = 14
B. 7 + 9 = 16
B. 15 - 9 = 6
B. 9 - 14 = 5
C. 9 + 16 = 7
C. 7 + 9 = 16
C. 14 - 9 = 9
D. 10 + 7 = 17
D. 24 - 6 = 18
D. 5 + 14 = 9
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