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뺄셈 2자리 - 1자리

		5	1
			6
		4	5

		4	8
			4
		4	4

		7	0
			4
		6	6

		4	8
			2
		4	6

		6	4
			4
		6	0

		2	4
			2
		2	2

		6	2
			1
		6	1

		2	0
			2
		1	8

		9	8
			5
		9	3

		6	3
			3
		6	0

		2	5
			5
		2	0

		7	0
			5
		6	5

		4	5
			4
		4	1

		5	4
			3
		5	1

		7	7
			4
		7	3