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덧셈 2자리 X 2자리

	5	7
	6	3
1	2	0

		5	9
		3	4
		9	3

		2	3
		3	5
		5	8

		6	2
		3	2
		9	4

		6	0
		6	0
	1	2	0

	6	5
	6	6
1	3	1

	6	3
	8	1
1	4	4

		2	4
		1	2
		3	6

	8	3
	3	7
1	2	0

		5	0
		4	5
		9	5

		2	5
		1	6
		4	1

		3	4
		2	2
		5	6

		6	0
		2	7
		8	7

		1	1
		5	8
		6	9

		2	3
		1	5
		3	8