Fact Families - 13 And 14 - Math Mammoth Add And Subtract Worksheet
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1Fact Families - 13 and 14
1. Fill in. In each fact family, color the marbles so they match the numbers in it.
Fact families with 13
10, 3, and 13
10 + 3 = _____
13 – 10 = _____
3 + 10 = _____
13 – 3 = _____
9, _____, and 13
9 + ____ = 13
_____ – ____ = ____
____ + ____ = _____
_____ – ____ = ____
8, ____, and 13
8 + ____ = 13
_____ – ____ = ____
____ + ____ = _____
_____ – ____ = ____
7, ____, and 13
7 + ____ = 13
_____ – ____ = ____
____ + ____ = _____
_____ – ____ = ____
2. Connect with a line the problems that are from same fact family. You don't need to
write the answers.
13 – 7 =
11 – 4 =
12 – 7 =
5 +
= 12
11 – 8 =
13 – 6 =
11 – 3 =
5 +
= 13
3 +
= 12
8 +
= 13
12 – 5 =
13 – 5 =
12 – 3 =
6 +
= 13
3 +
= 11
7 +
= 11
9 +
= 12
4 +
= 11
Sample worksheet from
46
Math Mammoth Add and Subtract 2-A (Blue Series)
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