BECE Mathematics 2011 Paper

A standard form should be in the form a.bcde $\times 10^{n}$The decimal point must be after the first non-zero digit.The $n$ is the number of times the decimal point has to be moved to be right after the first non-zero digit.If it is moved to the left, the $n$ is positive and if to the right, $n$ is negative.Every whole number has .0 at the end but not written.$\;3560=3560.0$$\;3560=3.5600=3.56 \times 10^{3}$Note: the power is positive because we have to move to the left.