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뺄셈 2자리 - 1자리

		2	3
			2
		2	1

		2	0
			2
		1	8

		6	0
			1
		5	9

		5	4
			3
		5	1

		4	3
			5
		3	8

		3	0
			8
		2	2

		5	2
			3
		4	9

		5	4
			8
		4	6

		6	2
			2
		6	0

		2	4
			8
		1	6

		2	5
			8
		1	7

		2	3
			4
		1	9

		3	4
			3
		3	1

		9	0
			4
		8	6

		3	0
			1
		2	9