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곱셈 2자리 X 2자리

1

		2	7
		7	1
		2	7
1	8	9	0
1	9	1	7

2

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

3

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

4

		5	4
		4	3
	1	6	2
2	1	6	0
2	3	2	2

5

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

6

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

7

		5	1
		7	7
	3	5	7
3	5	7	0
3	9	2	7

8

		5	5
		6	9
	4	9	5
3	3	0	0
3	7	9	5

9

		5	0
		9	5
	2	5	0
4	5	0	0
4	7	5	0

10

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

11

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

12

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

13

		1	5
		9	2
		3	0
1	3	5	0
1	3	8	0

14

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

15

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

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