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곱셈 2자리 X 1자리

	5	1
		8
4	0	8

		2	8
			2
		5	6

		1	1
			7
		7	7

	1	5
		9
1	3	5

	2	3
		5
1	1	5

		5	9
			1
		5	9

	9	9
		7
6	9	3

	6	1
		2
1	2	2

	5	4
		8
4	3	2

		9	8
			1
		9	8

	6	2
		2
1	2	4

		1	7
			4
		6	8

	6	4
		2
1	2	8

	1	4
		9
1	2	6

	1	4
		9
1	2	6