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뺄셈 2자리 - 1자리

		2	2
			4
		1	8

		3	1
			2
		2	9

		3	8
			8
		3	0

		2	7
			3
		2	4

		6	8
			3
		6	5

		1	6
			3
		1	3

		2	1
			6
		1	5

		4	2
			9
		3	3

		1	0
			8
			2

		4	0
			4
		3	6

		6	3
			2
		6	1

		5	6
			5
		5	1

		5	1
			3
		4	8

		3	2
			4
		2	8

		3	4
			4
		3	0