What number is 6 less than 27?

When solving a question like "What number is 6 less than 27?", take a close look at what it is really asking.

You have the number 27 and you are looking for a number that is 6 less than 27. In other words, if you have 27 and take away 6, then how many do you have?

You guessed it! This is a subtraction problem. 27 is the minuend and 6 is subtrahend and the answer we are looking for is the difference.

Therefore, to solve "What number is 6 less than 27?", you subtract 6 from 27 like so:

27 - 6 = 21

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