Common Core: 2.NBT — Number & Operations in Base Ten
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Name
Date
Score
/ 8
Break Apart 3
Directions: Solve in your head. Use the strategy label to help.
1.
Break Apart
13 + 7 =
Show your thinking
2.
Break Apart
14 + 6 =
Show your thinking
3.
Break Apart
14 + 12 =
Show your thinking
4.
Break Apart
14 + 11 =
Show your thinking
5.
Break Apart
15 + 10 =
Show your thinking
6.
Break Apart
15 + 9 =
Show your thinking
7.
Break Apart
16 + 7 =
Show your thinking
8.
Break Apart
16 + 6 =
Show your thinking
Great work — check your answers when you finish.
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