Subtract on a Number Line

By : Eddie Moran

Shopping

I went to the mall and had $124.3 on me. I spent $30.1 on H&M and Dickś Sporting Goods. So how do I find out how much I have left?

Process

First, I break 30.1 down into 30 and .1. Next, I subtract 30 from 124.3 to get 94.3. Then, I subtract .1 from 94.3 to get 94.2.