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곱셈 2자리 X 1자리

		2	7
			1
		2	7

	3	9
		8
3	1	2

	6	0
		5
3	0	0

		1	9
			5
		9	5

		3	4
			2
		6	8

	7	2
		6
4	3	2

	6	2
		4
2	4	8

	6	5
		6
3	9	0

	2	1
		8
1	6	8

	5	8
		7
4	0	6

	7	2
		3
2	1	6

	9	5
		3
2	8	5

	7	5
		3
2	2	5

	7	8
		4
3	1	2

	7	7
		6
4	6	2