For contractors and designers, adding and
subtracting strings of dimensions is an everyday
ritual. Some days it's an ordeal!
So I've always thought, wouldn't it be great if
you could add and subtract feet and inches on
your regular calculator without converting inches
to decimals? Well, you can. You don't need to be
a math wizard or have a calculator with a bazillion
functions, or even one of those expensive,
complicated feet-inches calculators either.
Quickly adding and subtracting dimensions on
your basic, four-function calculator is easy to do.
If you can remember a couple of simple rules and
one easy Magic Number, you will be able to
astound your friends and co-workers in about