Fact Families Addition & Subtraction Worksheet With Answer Key Page 30
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30Name:
Fact Families (Addition & Subtraction)
Determine which letter best represents the missing fact from the fact family.
A n s w e r s
1)
7 + 10 = 17
2)
10 + 9 = 19
3)
2 + 5 = 7
1.
10 + 7 = 17
19 - 10 = 9
5 + 2 = 7
17 - 10 = 7
19 - 9 = 10
7 - 2 = 5
2.
A. 18 - 7 = 11
A.
A. 2 - 7 = 5
B.
B. 19 + 10 = 29
B.
3.
C.
C.
C.
D. 17 - 7 = 10
D. 9 + 10 = 19
D. 7 - 5 = 2
4.
5.
4)
5)
6)
9 + 7 = 16
5 - 3 = 2
3 - 2 = 1
7 + 9 = 16
2 + 3 = 5
1 + 2 = 3
6.
16 - 7 = 9
5 - 2 = 3
2 + 1 = 3
7.
A.
A. 3 + 2 = 5
A.
B.
B. 6 - 2 = 4
B.
8.
C. 25 - 7 = 18
C.
C. 3 + 1 = 4
D. 16 - 9 = 7
D.
D. 3 - 1 = 2
9.
10.
7)
8 + 6 = 14
8)
12 - 3 = 9
9)
7 - 3 = 4
6 + 8 = 14
9 + 3 = 12
4 + 3 = 7
11.
14 - 8 = 6
3 + 9 = 12
3 + 4 = 7
A. 6 + 14 = 8
A. 12 - 9 = 3
A. 3 - 7 = 4
12.
B. 14 - 6 = 8
B.
B.
C.
C.
C.
D.
D. 10 + 3 = 13
D. 7 - 4 = 3
10)
11)
12)
5 + 6 = 11
7 + 5 = 12
6 - 1 = 5
6 + 5 = 11
5 + 7 = 12
1 + 5 = 6
11 - 5 = 6
12 - 5 = 7
6 - 5 = 1
A.
A. 13 - 7 = 6
A. 5 + 1 = 6
B.
B.
B. 6 + 1 = 7
C. 11 + 6 = 17
C. 12 - 7 = 5
C.
D. 11 - 6 = 5
D.
D.
Modified
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Math
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11-12
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