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뺄셈 2자리 - 1자리

		2	7
			1
		2	6

		2	5
			5
		2	0

		5	0
			6
		4	4

		1	0
			5
			5

		5	2
			3
		4	9

		4	1
			2
		3	9

		1	5
			5
		1	0

		3	7
			3
		3	4

		4	0
			3
		3	7

		2	6
			3
		2	3

		6	0
			1
		5	9

		6	3
			6
		5	7

		3	7
			2
		3	5

		6	1
			4
		5	7

		2	6
			4
		2	2