NOTE: You must start the timer in order to check your answers
7 + 3 =
9 - 4 =
8 + 5 =
7 - 4 =
5 - 3 =
4 + 5 =
6 + 6 =
8 - 4 =
8 + 2 =
9 - 6 =
back mental math
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