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뺄셈 2자리 - 1자리

		8	7
			1
		8	6

		6	3
			3
		6	0

		1	4
			2
		1	2

		2	6
			1
		2	5

		5	0
			5
		4	5

		5	2
			6
		4	6

		6	3
			3
		6	0

		3	8
			2
		3	6

		3	7
			8
		2	9

		6	0
			3
		5	7

		2	2
			2
		2	0

		5	5
			5
		5	0

		2	0
			4
		1	6

		5	5
			4
		5	1

		2	5
			9
		1	6