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뺄셈 2자리 - 1자리

		6	1
			7
		5	4

		2	4
			8
		1	6

		1	8
			2
		1	6

		5	0
			3
		4	7

		6	4
			3
		6	1

		6	5
			4
		6	1

		2	9
			2
		2	7

		6	5
			1
		6	4

		6	6
			6
		6	0

		3	0
			1
		2	9

		3	9
			9
		3	0

		9	6
			1
		9	5

		1	4
			8
			6

		4	1
			5
		3	6

		4	7
			4
		4	3