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곱셈 2자리 X 1자리

	2	8
		9
2	5	2

	2	9
		6
1	7	4

	4	7
		6
2	8	2

	5	7
		8
4	5	6

		1	8
			1
		1	8

		5	4
			1
		5	4

	8	2
		3
2	4	6

	2	8
		4
1	1	2

	7	3
		3
2	1	9

	6	9
		4
2	7	6

		3	3
			3
		9	9

		2	9
			1
		2	9

	7	1
		2
1	4	2

	9	4
		3
2	8	2

	7	5
		2
1	5	0