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곱셈 2자리 X 2자리

1

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

2

		1	5
		1	0
			0
	1	5	0
	1	5	0

3

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

4

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

5

		1	0
		5	5
		5	0
	5	0	0
	5	5	0

6

		6	1
		9	1
		6	1
5	4	9	0
5	5	5	1

7

		6	8
		4	0
			0
2	7	2	0
2	7	2	0

8

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

9

		2	2
		1	2
		4	4
	2	2	0
	2	6	4

10

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

11

		1	1
		8	8
		8	8
	8	8	0
	9	6	8

12

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

13

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

14

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

15

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

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