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뺄셈 2자리 - 1자리

		2	3
			9
		1	4

		2	6
			6
		2	0

		2	0
			5
		1	5

		3	4
			9
		2	5

		3	1
			7
		2	4

		1	1
			8
			3

		3	4
			4
		3	0

		9	5
			2
		9	3

		2	4
			1
		2	3

		4	9
			1
		4	8

		6	0
			3
		5	7

		2	9
			1
		2	8

		5	7
			1
		5	6

		9	8
			1
		9	7

		5	9
			5
		5	4