Multiply by 2
Multiply by 5
Multiply by 9
Multiply by 10
2 Digit x 1 Digit
100

3 x 2

6
100

5 x 2

10

100

1 x 9

9

100

10 x 2

20

100

24 x 3

72

200
1 x 2

2

200

4 x 5

20

200

3 x 9

27

200

4 x 10

40

200

35 x 5

175

300

6 x 2

12

300

6 x 5

30

300
9 x 5

45

300

10 x 10

100

300

12 x 9

108

400

2 x 9

18

400

5 x 8

40

400

8 x 9

72

400
10 x 9

90

400

20 x 3

60

500

2 x 24

24

500

11 x 5

55

500

9 x 9 

81

500

10 x 12

120

500

47 x 9

423
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