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뺄셈 2자리 - 1자리

		2	7
			2
		2	5

		3	3
			1
		3	2

		6	1
			6
		5	5

		6	0
			7
		5	3

		4	9
			3
		4	6

		1	1
			1
		1	0

		4	3
			3
		4	0

		2	9
			5
		2	4

		1	5
			9
			6

		4	5
			1
		4	4

		5	4
			2
		5	2

		2	7
			4
		2	3

		3	0
			1
		2	9

		3	7
			6
		3	1

		1	5
			3
		1	2