What is 10 less than 9?

Here we tell you how to calculate 10 less than 9 and give you the answer. If you deduct 10 from 9, you get the answer to 10 less than 9. Doing this, you find that the answer is:

-1

See how we did that? We simply subtracted 10 from 9. It is an easy and simple math problem. 10 less than 9 is the same as 9 minus 10. So, once again, the answer is -1.

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What is 10 less than 10?
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