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뺄셈 2자리 - 1자리

		1	0
			2
			8

		1	0
			8
			2

		4	0
			9
		3	1

		1	2
			4
			8

		5	3
			2
		5	1

		3	7
			1
		3	6

		3	0
			4
		2	6

		6	1
			5
		5	6

		6	3
			7
		5	6

		3	1
			1
		3	0

		3	1
			5
		2	6

		3	2
			1
		3	1

		4	7
			3
		4	4

		3	7
			2
		3	5

		2	6
			1
		2	5