Fact Families Addition & Subtraction Worksheet With Answer Key Page 3
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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)
17 - 8 = 9
2)
11 - 8 = 3
3)
8 - 1 = 7
1.
17 - 9 = 8
3 + 8 = 11
7 + 1 = 8
8 + 9 = 17
8 + 3 = 11
8 - 7 = 1
2.
A.
A.
A.
B. 9 + 8 = 17
B. 11 + 8 = 19
B.
3.
C. 17 - 9 = 9
C.
C. 8 - 1 = 1
D.
D. 11 - 3 = 8
D. 1 + 7 = 8
4.
5.
4)
5)
6)
5 + 2 = 7
6 - 5 = 1
2 + 10 = 12
2 + 5 = 7
5 + 1 = 6
12 - 10 = 2
6.
7 - 2 = 5
6 - 1 = 5
12 - 2 = 10
7.
A.
A.
A. 12 - 2 = 2
B. 7 - 5 = 2
B. 5 - 6 = 1
B.
8.
C.
C. 1 + 5 = 6
C.
D. 8 - 5 = 3
D.
D. 10 + 2 = 12
9.
10.
7)
9 + 7 = 16
8)
17 - 10 = 7
9)
10 - 8 = 2
7 + 9 = 16
7 + 10 = 17
10 - 2 = 8
11.
16 - 7 = 9
10 + 7 = 17
8 + 2 = 10
A.
A.
A.
12.
B. 16 - 9 = 7
B.
B. 2 + 8 = 10
C. 25 - 7 = 18
C. 17 - 7 = 10
C. 8 - 10 = 2
D.
D. 17 - 7 = 7
D.
10)
11)
12)
5 + 3 = 8
5 + 7 = 12
2 + 3 = 5
8 - 3 = 5
7 + 5 = 12
5 - 2 = 3
3 + 5 = 8
12 - 5 = 7
3 + 2 = 5
A.
A. 12 - 7 = 7
A.
B. 8 - 5 = 3
B.
B.
C. 6 + 3 = 9
C.
C. 5 - 3 = 2
D.
D. 12 - 7 = 5
D. 3 + 3 = 6
Modified
92 83 75 67 58 50 42 33 25 17
1-10
9
Math
8
0
11-12
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