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덧셈 2자리 X 2자리

	8	3
	2	1
1	0	4

	3	1
	9	3
1	2	4

	2	8
	8	3
1	1	1

		1	8
		4	6
		6	4

		3	4
		3	4
		6	8

		4	0
		2	2
		6	2

		2	5
		6	2
		8	7

	6	2
	6	2
1	2	4

		2	8
		2	9
		5	7

	3	5
	8	9
1	2	4

		1	0
		6	6
		7	6

		3	5
		5	4
		8	9

	9	1
	8	2
1	7	3

		4	2
		2	4
		6	6

		5	4
		1	5
		6	9