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뺄셈 2자리 - 1자리

		2	0
			4
		1	6

		2	2
			2
		2	0

		2	8
			4
		2	4

		4	0
			4
		3	6

		4	6
			2
		4	4

		5	4
			7
		4	7

		4	5
			5
		4	0

		2	4
			8
		1	6

		5	7
			7
		5	0

		3	3
			4
		2	9

		5	2
			2
		5	0

		6	1
			9
		5	2

		3	0
			4
		2	6

		2	8
			1
		2	7

		9	5
			2
		9	3