Powers and roots
Powers and roots
A power is a way of writing a number that is multiplied by itself. A root is the opposite of this. It is a way of writing a number that can be divided into another number multiplied by itself.
Evaluating powers and expressing whole numbers as powers
You can evaluate powers yourself or with a calculator by multiplying the number by itself the number of times shown by the power or index. Finding the root is often easiest using the root button on a calculator.
