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Compute the absolute, exponential distance between two given prefixes:
16) kilo and femto
103 and 10¯15 give a total absolute distance of 1018
17) milli and micro
10¯3 and 10¯6 give a total absolute distance of 103
18) micro and mega
10¯6 and 106 give a total absolute distance of 1012
19) centi and pico
10¯2 and 10¯12 give a total absolute distance of 1010
20) nano and kilo
10¯9 and 103 give a total absolute distance of 1012
21) deci and tera
10¯1 and 1012 give a total absolute distance of 1013
22) pico and micro
10¯12 and 10¯6 give a total absolute distance of 106
23) kilo and giga
103 and 109 give a total absolute distance of 106
24) femto and centi
10¯15 and 10¯2 give a total absolute distance of 1013
25) milli and centi
10¯3 and 10¯2 give a total absolute distance of 101
Some people are always looking for rules to memorize to help them. Notice that when the two prefixes are from the same side (two negatives or two positives), the answer is the absolute difference between the two. If the two prefixes cross over (as in one positive and one negative), then it is the absolute sum.
OK, but what if the problem involves the base unit, as in "What is the absolute difference between nano and no prefix?" I guess the answer is that it doesn't matter because the absolute difference between 10¯9 and 100 is the same as the absolute sum.
So there!