In details

Forming the Nine Times Table


First, make a column from 0 to 9:
0
1
2
3
4
5
6
7
8
9

Then make a column from 9 to 0:
9
8
7
6
5
4
3
2
1
0

Now join the two together to get the results of the nine times table:
09
18
27
36
45
54
63
72
81
90

* Submitted by Gabriel Pires Zampol