What number is 20 less than 6?

When solving a question like "What number is 20 less than 6?", take a close look at what it is really asking.

You have the number 6 and you are looking for a number that is 20 less than 6. In other words, if you have 6 and take away 20, then how many do you have?

You guessed it! This is a subtraction problem. 6 is the minuend and 20 is subtrahend and the answer we are looking for is the difference.

Therefore, to solve "What number is 20 less than 6?", you subtract 20 from 6 like so:

6 - 20 = -14

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