How to write Table of any two digit number?

For example Table of 87

First write down table of 8 than write down table of 7 beside

  8            7                    87
16         14    (16+1)    174
24         21    (24+2)    261
32         28    (32+2)    348
40         35    (40+3)    435
48         42    (48+4)    522
56         49    (56+4)    609
64         56    (64+5)    696
72         63    (72+6)    783
80         70    (80+7)    870

This way one can make Tables from10 to 99 .