standard form

STANDARD FORM

This means expressing a number as a value between 1 and 10 then multiplying it by a power of 10.

864.3 = 8.643 x 10²

^{31.2 = 3.12 x 10}

33,000,000 = 3.3 x 10⁷

0.678 = 6.78 x 10^-1

0.00472 = 4.72 x 10^-3

^{The correct value is
obtained by putting one figure before the decimal point and then multiplying
by a power of 10.}