What number is 39 less than 18?

When solving a question like "What number is 39 less than 18?", take a close look at what it is really asking.

You have the number 18 and you are looking for a number that is 39 less than 18. In other words, if you have 18 and take away 39, then how many do you have?

You guessed it! This is a subtraction problem. 18 is the minuend and 39 is subtrahend and the answer we are looking for is the difference.

Therefore, to solve "What number is 39 less than 18?", you subtract 39 from 18 like so:

18 - 39 = -21

Less Than Calculator
Need another answer? Enter another "What number is X less than Y?" problem below:

What number is 39 less than 19?
Proceed to the next problem on our list that we explained and answered.