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뺄셈 2자리 - 1자리

		5	0
			2
		4	8

		2	5
			7
		1	8

		6	2
			3
		5	9

		2	0
			1
		1	9

		5	4
			8
		4	6

		2	4
			1
		2	3

		3	0
			5
		2	5

		1	4
			9
			5

		2	7
			3
		2	4

		1	9
			3
		1	6

		3	6
			6
		3	0

		3	0
			1
		2	9

		6	8
			2
		6	6

		3	2
			5
		2	7

		6	4
			2
		6	2