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뺄셈 2자리 - 1자리

		6	1
			8
		5	3

		2	8
			8
		2	0

		1	3
			8
			5

		3	7
			3
		3	4

		2	7
			9
		1	8

		1	6
			6
		1	0

		1	6
			2
		1	4

		3	5
			4
		3	1

		5	2
			2
		5	0

		6	6
			2
		6	4

		6	6
			1
		6	5

		6	7
			4
		6	3

		6	8
			1
		6	7

		2	0
			6
		1	4

		3	6
			2
		3	4