<P> An order of magnitude is an approximate measure of the number of digits that a number has in the commonly - used base - ten number system . It is equal to the logarithm (base 10) rounded to a whole number . For example, the order of magnitude of 1500 is 3, because 1500 = 1.5 × 10 . </P> <P> Differences in order of magnitude can be measured on a base - 10 logarithmic scale in "decades" (i.e., factors of ten). Examples of numbers of different magnitudes can be found at Orders of magnitude (numbers). </P>

What does order of magnitude mean in math
find me the text answering this question