Starter- Subtract the muliples of 10 , if you need to , draw to be sure.
50 - 30 =
40 - 20 =
70 - 50 =
80 - 60 =
30 - 30 =
60 - 40 =
90 - 20 =
70 - 40 =
90 - 10 - 20 =
80 - 40 - 20 =
50 - 30 - 20 =
Unfortunately not the ones with chocolate chips.
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