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Napier's bones, without the bones.

Step 5Why use the bones method?

Other traditional methods of multiplication work, so why use the bones?

It's fairly simple; it lets you check your working more easily.

If you use the traditional column method, with lots of rows above and below the answer box, and having to keep track of place-value at the same time, it can be hard to check your workings, or to find out where you went wrong.

With the bones, you are checking a set of separate calculations, all relatively simple, with small answers.  Easy to check, easy to fix.

Go on.  Try it.

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Author:Kiteman(The Complete Kiteman Shop)
"Happiness is a shed full of power tools." If you need help around the site, or with a project, feel free to contact me.