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?

1 Answer
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:

  • "cut off"
  • "take away"
  • "remove"

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