# How to simplify #3.21 times 10^2 + 1.5 times 10^4# in scientific notation?

##### 1 Answer

Nov 3, 2015

#### Answer:

#### Explanation:

The secret is to make the powers of 10 the same. In a sense the powers of 10 are the units so you are converting the numbers so that you are adding like for like.

Giving: