Chapter 12 Incredible Conversion, Measurement and Time Shortcuts

Among the valuable math shortcuts managers are likely to need are those involving conversions between different numerical systems; measurements; and fast estimates of time and yield. This chapter takes a look at these important areas.


When you confront a particular system, it is often desirable to convert it to another system. For example, it is easier to multiply decimal-based values than those expressed in fractions. Conversions among decimals, fractions, and percentages are inevitable in many business applications.

In an earlier chapter, the method for converting percentage to decimal was explained and expressed in two formats. First was the decimal shift:


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