Quote:
Originally Posted by chalsall
Given a spreadsheet program (Excel, LibraOffice, et al) compute the 12 by 12 times table.
Those who are good only need to enter one number ("1") in A1, and every other cell is a formula.
The really good ones can complete this exercise in less than sixty seconds.

The constant one in A1 is not necessary. =row() or =column() will do as well. And since that formula can be copied and used elsewhere, there's a time savings.