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곱셈 2자리 X 1자리

	5	7
		8
4	5	6

		1	7
			2
		3	4

	5	1
		9
4	5	9

		4	6
			2
		9	2

		1	8
			2
		3	6

	2	6
		4
1	0	4

		1	0
			5
		5	0

	9	8
		3
2	9	4

		1	2
			5
		6	0

	3	9
		6
2	3	4

	6	2
		9
5	5	8

	5	9
		5
2	9	5

	3	8
		7
2	6	6

	4	1
		9
3	6	9

	5	3
		6
3	1	8