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뺄셈 2자리 - 1자리

		1	1
			7
			4

		2	6
			8
		1	8

		7	0
			4
		6	6

		9	5
			2
		9	3

		6	6
			5
		6	1

		4	0
			4
		3	6

		7	9
			9
		7	0

		5	3
			5
		4	8

		3	6
			6
		3	0

		1	4
			3
		1	1

		7	0
			3
		6	7

		3	4
			2
		3	2

		9	8
			5
		9	3

		9	3
			2
		9	1

		1	3
			1
		1	2