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곱셈 2자리 X 2자리

1

		3	7
		1	1
		3	7
	3	7	0
	4	0	7

2

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

3

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

4

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

5

		5	1
		4	4
	2	0	4
2	0	4	0
2	2	4	4

6

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

7

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

8

		1	1
		6	1
		1	1
	6	6	0
	6	7	1

9

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

10

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

11

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

12

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

13

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

14

		1	6
		1	6
		9	6
	1	6	0
	2	5	6

15

		8	5
		5	2
	1	7	0
4	2	5	0
4	4	2	0

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