Show:
__ x 2
__ x 5
__ x 6
__ x 7
__ x 9
100

Answer: 12

6 x 2

100

Answer: 15

3 x 5 

100

Answer: 18

3 x 6

100

Answer: 21

3 x 7

100

Answer: 36

4 x 9

200

Answer: 4

2 x 2

200

Answer: 50

10 x 5

200

Answer: 42

7 x 6

200

Answer: 49

7 x 7

200
Answer: 63

7 x 9

300

Answer: 18

9 x 2

300

Answer: 20

4 x 5

300

Answer: 24

4 x 6

300

Answer: 56

8 x 7

300

Answer: 27

3 x 9

400

Answer 14

7 x 2

400
Answer: 35

7 x 5

400

Answer: 54

9 x 6

400

Answer: 14

2 x 7

400

Answer: 72

8 x 9

500

Answer: 6

3 x 6

500

Answer: 45

9 x 5

500

Answer: 36

6 x 6

500

Answer: 7

1 x 7

500

Answer: 81

9 x 9