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곱셈 2자리 X 1자리

	2	1
		9
1	8	9

	3	8
		6
2	2	8

	4	9
		5
2	4	5

	8	8
		3
2	6	4

	6	4
		5
3	2	0

	6	5
		6
3	9	0

		9	3
			1
		9	3

		1	2
			2
		2	4

	7	4
		9
6	6	6

	8	4
		9
7	5	6

	2	9
		9
2	6	1

	4	4
		6
2	6	4

	2	3
		8
1	8	4

	6	2
		2
1	2	4

	2	7
		8
2	1	6