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