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곱셈 2자리 X 1자리

	2	4
		7
1	6	8

	6	3
		4
2	5	2

		1	6
			2
		3	2

	9	4
		2
1	8	8

		5	2
			1
		5	2

		8	6
			1
		8	6

	6	9
		4
2	7	6

		3	1
			2
		6	2

	6	8
		4
2	7	2

	9	0
		4
3	6	0

		2	0
			2
		4	0

	7	2
		6
4	3	2

	3	8
		3
1	1	4

	6	9
		3
2	0	7

	3	9
		6
2	3	4