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곱셈 2자리 X 1자리

	4	2
		8
3	3	6

		1	8
			2
		3	6

		1	2
			6
		7	2

	4	9
		5
2	4	5

	3	6
		8
2	8	8

	2	8
		7
1	9	6

	5	4
		2
1	0	8

	4	9
		4
1	9	6

	6	0
		6
3	6	0

		3	0
			3
		9	0

		2	2
			2
		4	4

		3	2
			2
		6	4

		7	6
			1
		7	6

	9	7
		3
2	9	1

		4	0
			1
		4	0