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뺄셈 2자리 - 1자리

		2	0
			2
		1	8

		5	4
			2
		5	2

		3	7
			5
		3	2

		4	5
			3
		4	2

		8	4
			5
		7	9

		9	0
			1
		8	9

		2	7
			4
		2	3

		2	8
			6
		2	2

		3	0
			6
		2	4

		1	3
			1
		1	2

		9	0
			5
		8	5

		6	7
			4
		6	3

		2	5
			2
		2	3

		6	6
			1
		6	5

		3	3
			1
		3	2