Adding Doubles Strategy Worksheet With Answer Key

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Adding Doubles Strategy (D)
Use an adding doubles strategy to find each sum
Example: 9 + 10 = 9 + 9 + 1 = 18 + 1 = 19
6 + 6 =
8 + 6 =
8 + 9 =
11 + 9 =
3 + 1 =
5 + 3 =
6 + 5 =
5 + 6 =
6 + 5 =
2 + 2 =
7 + 9 =
6 + 7 =
7 + 8 =
10 + 9 =
4 + 4 =
8 + 10 =
4 + 3 =
2 + 2 =
4 + 6 =
8 + 8 =
2 + 0 =
2 + 0 =
0 + 2 =
9 + 7 =
3 + 3 =
2 + 4 =
2 + 1 =
2 + 1 =
5 + 4 =
9 + 11 =

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