The radicand refers to the number under the radical sign. In the radical below, the radicand is the number '5'.

**This Page's Topics**

**Video** in How To Add Square Roots

#### How to Add Simplified Square Roots?

Let's look at the following example

You can only add square roots (or radicals) that have the same radicand. So in the example above you can add the first and the last terms:

The same rule goes for subtracting. Consider the following example:

You can subtract square roots with the same radicand--which is the first and last terms.

**Practice** Problems

**Directions:**Add the square roots below

Only the first and last square root have the same radicand, so you can add these two terms.

Remember--the same rule applies to subtracting square roots--the radicands must be the same.