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뺄셈 2자리 - 1자리

		1	3
			1
		1	2

		6	3
			1
		6	2

		5	9
			9
		5	0

		2	7
			2
		2	5

		2	2
			1
		2	1

		4	2
			1
		4	1

		4	8
			4
		4	4

		6	2
			5
		5	7

		2	3
			1
		2	2

		1	6
			6
		1	0

		3	6
			6
		3	0

		4	0
			9
		3	1

		1	2
			4
			8

		2	1
			3
		1	8

		4	5
			5
		4	0