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뺄셈 2자리 - 1자리

		2	3
			8
		1	5

		2	3
			3
		2	0

		7	2
			5
		6	7

		7	0
			3
		6	7

		9	8
			3
		9	5

		2	0
			7
		1	3

		3	2
			4
		2	8

		5	5
			7
		4	8

		2	5
			5
		2	0

		3	6
			2
		3	4

		9	2
			6
		8	6

		9	3
			6
		8	7

		7	2
			8
		6	4

		5	5
			3
		5	2

		2	1
			1
		2	0