# Juanna had a board that was 54 inches long. She cut off 22.5 inches for a project. How many inches of the board remain?

Mar 17, 2018

$31.5$ inches remain

#### Explanation:

The board is 54 inches long, and she removes 22.5 inches. So we are going to subtract .

I'm going to add a decimal to $54$:
$54.0 - 22.5 = 31.5$

$31.5$ are how many inches remain.

A good thing to remember is that words like:

• $\text{cut off}$
• $\text{take away}$
• $\text{remove}$

All mean subtract , so you know that you'll be setting up a problem with subtraction . Hope this helps!