Writing Standard Form Numbers as Ordinary Numbers

Using standard form is incredibly useful when we either need to use very large or very small numbers.

Other areas we may use standard form includes science. From measuring the distance between stars or the mass of atoms.

Remember

1000 = 10³

100 = 10²

10 = 10¹

1= 10⁰

0.1 = 10^-1

0.01 = 10^-2

0.001 = 10^-3

Examples

5.1 × 10² as an ordinary number is

5.1 × 100 = 510

3.214 × 10 ^-4 as an ordinary number is

3.214 x 0.0001 = 3.214 ÷ 1000 = 0.003214