Common Core: 1.NBT

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Doubles Facts 3

Grade 1 · Mental Math · 8 problems

Directions: Solve in your head. Use the strategy label to help.

1.
Doubles
9 + 9 =
Show your thinking
2.
Doubles
10 + 10 =
Show your thinking
3.
Doubles
1 + 1 =
Show your thinking
4.
Doubles
2 + 2 =
Show your thinking
5.
Doubles
3 + 3 =
Show your thinking
6.
Doubles
4 + 4 =
Show your thinking
7.
Doubles
5 + 5 =
Show your thinking
8.
Doubles
6 + 6 =
Show your thinking

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