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곱셈 2자리 X 2자리

1

		2	8
		3	1
		2	8
	8	4	0
	8	6	8

2

		7	4
		7	9
	6	6	6
5	1	8	0
5	8	4	6

3

		5	5
		5	2
	1	1	0
2	7	5	0
2	8	6	0

4

		2	3
		4	0
			0
	9	2	0
	9	2	0

5

		9	9
		5	2
	1	9	8
4	9	5	0
5	1	4	8

6

		4	1
		1	0
			0
	4	1	0
	4	1	0

7

		8	4
		2	9
	7	5	6
1	6	8	0
2	4	3	6

8

		4	9
		6	5
	2	4	5
2	9	4	0
3	1	8	5

9

		4	8
		3	8
	3	8	4
1	4	4	0
1	8	2	4

10

		3	5
		4	1
		3	5
1	4	0	0
1	4	3	5

11

		6	1
		7	4
	2	4	4
4	2	7	0
4	5	1	4

12

		7	3
		5	6
	4	3	8
3	6	5	0
4	0	8	8

13

		2	4
		8	5
	1	2	0
1	9	2	0
2	0	4	0

14

		4	4
		6	9
	3	9	6
2	6	4	0
3	0	3	6

15

		5	4
		4	2
	1	0	8
2	1	6	0
2	2	6	8

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