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Improving Your Mental Math Skills?

Posted by Cliff on from the outperforming-an-abacus dept.

Infrared-Archer asks: "I want to learn how to do most math calculations in my head. That way I won't have to reach for the calculator for problems I should be able to do mentally. Of course there are various websites (beat the calculator) that show many tricks, but I am looking for a comprehensive solution (books, websites) that shows how to solve of wide range of math problems mentally. Any suggestions?"

1 of 136 comments (clear)

  1. fp by Anonymous Coward · · Score: -1, Offtopic

    fp