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뺄셈 2자리 - 1자리

		2	3
			1
		2	2

		5	1
			9
		4	2

		3	2
			4
		2	8

		3	8
			4
		3	4

		5	5
			2
		5	3

		3	1
			4
		2	7

		9	0
			2
		8	8

		6	8
			4
		6	4

		3	6
			2
		3	4

		2	6
			4
		2	2

		2	1
			1
		2	0

		9	1
			6
		8	5

		3	0
			4
		2	6

		9	8
			4
		9	4

		3	4
			8
		2	6