2 by 2 digit
1 by 2 digit
1 by 1 digit
1 by 3 digit
1 by 4 digit
100

25 x 4

what is 100

100

4 x 13

what is 52

100

2 x4

what is 8

100

3 x 122

what is 366

100

6 x 3475

what is 20850

200

13 x 12

what is 156

200

8 x 16

what is 128

200

3 x 9

what is 27

200

7 x 365

what is 2555

200

7 x 1234

what is 8638

300

27 x 13

what is 351

300

9 x 18

what is 162

300

9 x 8

what is 72 

300

6 x 371

what is 2226

300

3 x 7654

what is 22962

400

45 x 35

what is 1575

400

2 x 11

what is 22

400

4 x 9 

what is 36

400

3 x 763

what is 2289

400

9 x 6835

what is 61515

500

23 x 14

what is 322

500

3 x 11

what is 33

500

2 x 9

what is 18

500

7 x 241

what is 1687

500

8 x 3284

what is 26262