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뺄셈 2자리 - 1자리

		3	4
			7
		2	7

		2	5
			1
		2	4

		4	7
			6
		4	1

		6	2
			2
		6	0

		3	6
			3
		3	3

		1	0
			6
			4

		3	4
			4
		3	0

		6	1
			7
		5	4

		2	2
			3
		1	9

		4	3
			5
		3	8

		1	3
			7
			6

		1	6
			4
		1	2

		3	0
			1
		2	9

		4	1
			3
		3	8

		2	0
			5
		1	5