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덧셈 2자리 X 2자리

		2	3
		4	5
		6	8

		5	1
		4	4
		9	5

		3	0
		1	1
		4	1

		2	4
		3	8
		6	2

		2	5
		4	4
		6	9

		2	5
		5	7
		8	2

	2	9
	9	5
1	2	4

		4	7
		3	0
		7	7

	8	3
	9	5
1	7	8

		2	3
		2	2
		4	5

	9	1
	6	1
1	5	2

	1	2
	8	9
1	0	1

	3	0
	9	3
1	2	3

		2	5
		5	8
		8	3

	6	2
	5	8
1	2	0