Show:
x4
x6
x7
x8
x9
100
4 x 2
What is 8
100
6 x 3
What is 18
100
3 x 7
What is 21
100
8 x 9
What is 72
100

9 x 2

18

200
4 x 4
What is 16
200
6 x 8
What is 48
200
7 x 8
What is 56
200
8 x 7
What is 56
200

9 x 4

36

300
4 x 9
What is 36
300
6 x 4
What is 24
300
7 x 7
What is 49
300
8 x 8
What is 64
300

9 x 10

90

400

4 x 90

What is 360

400

6 x 62

What is 372

400

7 x 52

What is 364

400

8 x 45

What is 360

400

9 x 91

819

500

4 x 734

2, 936

500

6 x 431

2,586

500

7 x 423

2,961

500

8 x 245

1,960

500

9 x 321

2,889