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덧셈 2자리 X 2자리

		4	8
		4	3
		9	1

		6	5
		2	8
		9	3

	9	4
	2	6
1	2	0

		3	2
		6	3
		9	5

		1	7
		2	9
		4	6

		1	3
		4	8
		6	1

	8	6
	6	0
1	4	6

	8	6
	3	8
1	2	4

		2	5
		7	1
		9	6

		2	6
		1	6
		4	2

	2	5
	9	6
1	2	1

		3	3
		3	1
		6	4

		5	9
		3	7
		9	6

		8	0
		4	0
	1	2	0

		4	5
		1	3
		5	8