NAME ____________________________________ DATE __________________
ACTIVITY
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Number Strings
Use combinations you know to solve these problems. Show your work.
13 2 + 7 + 6 =
14 5 + 3 + 6 + 8 + 7 =
15 5 + 6 + 4 + 10 + 5 =
16 2 + 9 + 1 + 2 =
17 5 + 6 + 4 =
18 9 + 7 + 1 + 3 =