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뺄셈 2자리 - 1자리

		2	9
			9
		2	0

		3	0
			1
		2	9

		2	4
			6
		1	8

		5	7
			6
		5	1

		6	1
			3
		5	8

		3	7
			8
		2	9

		6	0
			8
		5	2

		4	5
			9
		3	6

		2	0
			9
		1	1

		8	6
			2
		8	4

		1	9
			5
		1	4

		9	6
			1
		9	5

		9	2
			1
		9	1

		4	9
			2
		4	7

		3	1
			6
		2	5