How to easily solve this:
0.00256 / 160
Insturctions: first express each number in scientific notation. Then simplify.
Scien not for numerator 256 x 10^-5
Scien Not.for denom 16 x 10^1 16 goes in to 256 16 times
Result = 16 x 10^(-5-1) = 16 x 10^-6 = .000016