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뺄셈 2자리 - 1자리

		8	7
			5
		8	2

		5	7
			6
		5	1

		3	0
			1
		2	9

		6	9
			1
		6	8

		9	7
			5
		9	2

		4	4
			6
		3	8

		2	8
			4
		2	4

		2	0
			5
		1	5

		6	1
			1
		6	0

		2	0
			2
		1	8

		8	8
			6
		8	2

		1	2
			2
		1	0

		9	7
			3
		9	4

		8	3
			1
		8	2

		9	1
			4
		8	7