1-6. 곱셈
1 5 x 5 =
2 7 x 2 =
3 4 x 4 =
4 7 x 8 =
5 1 x 8 =
6 3 x 2 =
7 3 x 9 =
8 1 x 9 =
9 3 x 6 =
10 6 x 2 =
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