大象传媒

Standard form

Using standard form to represent very large and very small numbers is explored

Standard form, or standard index form, is a system of writing numbers which can be particularly useful for working with very large or very small numbers. It is based on using of 10 to express how big or small a number is.

Scientists use standard form when working with the speed of light and distances between galaxies, which can be enormous. The size of bacteria or atoms may also be referred to in standard form as they are so tiny. Standard form is also sometimes referred to as scientific notation.

Small and large measurements