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