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뺄셈 2자리 - 1자리

		1	0
			2
			8

		4	5
			2
		4	3

		4	9
			5
		4	4

		5	3
			1
		5	2

		7	5
			4
		7	1

		3	3
			2
		3	1

		6	6
			1
		6	5

		3	0
			7
		2	3

		4	0
			8
		3	2

		1	0
			9
			1

		3	7
			4
		3	3

		2	5
			5
		2	0

		6	8
			3
		6	5

		6	2
			1
		6	1

		1	6
			4
		1	2