mulitpy by 2,5,3,1,5
mulitpy by 10,1s,3
mulitpy 10s and5s
mulitpy by 10,1,5,9
mulitpy 2,5,3,10
100

2x4

8

100

10x9

90

100

10x4

40

100

10x2

20

100

2x5

10


200

5x4

20

200

1x9

9


200

5x7

30

200

1x1

1

200

5x5

25

300

3x4

12

300

1x0

0

300

5x1

5


300

5x10

50

300

3x2

6

400

1x7

7

400

1x10

10

400

5x8

40


400

9x10

90

400

2x2

4


500

5x0

0
500

3x1

3


500

10x7

70

500

10x3

30

500

10x10

100
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