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뺄셈 2자리 - 1자리

		2	8
			3
		2	5

		2	2
			6
		1	6

		7	2
			1
		7	1

		5	4
			3
		5	1

		2	8
			4
		2	4

		5	2
			2
		5	0

		4	0
			5
		3	5

		4	5
			2
		4	3

		5	8
			9
		4	9

		2	8
			5
		2	3

		5	4
			4
		5	0

		2	5
			4
		2	1

		1	3
			2
		1	1

		6	2
			1
		6	1

		2	2
			2
		2	0