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곱셈 2자리 X 2자리

1

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

2

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

3

		1	9
		9	5
		9	5
1	7	1	0
1	8	0	5

4

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

5

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

6

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

7

		1	5
		1	0
			0
	1	5	0
	1	5	0

8

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

9

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

10

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

11

		3	8
		6	2
		7	6
2	2	8	0
2	3	5	6

12

		8	6
		3	3
	2	5	8
2	5	8	0
2	8	3	8

13

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

14

		6	0
		8	1
		6	0
4	8	0	0
4	8	6	0

15

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

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