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How many three-digit whole numbers have at least one 7 or at least one 9 as digits?

 Jul 4, 2020
 #1
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A lot. You probably have to ask them yourself. But be careful of 667. He's pretty obsessive of his possessions.

 Jul 4, 2020
 #2
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There are 252 numbers between 100 and 999 with AT LEAST one 7 in them.

 

There are 252 numbers between 100 and 999 with AT LEAST one 9 in them.

 Jul 4, 2020

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