Exponents review

CCSS Math: 6.EE.A.1
Review the basics of exponents and try some practice problems.

Exponents and bases

Here's what an exponent and a base look like:
$\blueD4^\goldD3$
The small number written above and to the right of a number is called an $\goldD{\text{exponent}}$. The number underneath the exponent is called the $\blueD{\text{base}}$. In this example, the base is $\blueD4$, and the exponent is $\goldD3$.

Evaluating exponents

An exponent tells us to multiply the base by itself that number of times.
In our example, $\blueD4^\goldD3$ tells us to multiply the base of $\blueD4$ by itself $\goldD3$ times:
\begin{aligned} \blueD4^\goldD3 &=\blueD4 \times \blueD4 \times \blueD4 \\\\ \phantom{\blueD4^\goldD3}&= 64 \end{aligned}

What about when the exponent is a zero?

Any base with an exponent of zero is equal to $1$.
For example, $7^0=1$.
Check out this video to see why.

Practice

Problem 1
Evaluate.
$9^2=$

Want to try more problems like this? Check out this exercise.