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뺄셈 2자리 - 1자리

		2	7
			3
		2	4

		3	9
			7
		3	2

		5	1
			1
		5	0

		4	1
			7
		3	4

		1	7
			7
		1	0

		1	0
			9
			1

		1	4
			2
		1	2

		3	8
			9
		2	9

		6	9
			8
		6	1

		1	0
			8
			2

		6	0
			9
		5	1

		2	6
			2
		2	4

		2	0
			5
		1	5

		7	8
			9
		6	9

		3	4
			8
		2	6