Posted by **stick** on Tuesday, August 21, 2012 at 11:02pm.

This was on my 5th grader's homework:

what is the least number you can make using all of the digits from 0 through 9 exactly once?

My answer was 1,023,456,789. The teacher says it's 0,123,456,789.

I think that if the zero is the first digit, it's not actually part of the number.

???

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**Ms. Sue**, Tuesday, August 21, 2012 at 11:06pm
I agree with you.

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**madi**, Tuesday, August 21, 2012 at 11:14pm
i don't get it...

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**Reiny**, Tuesday, August 21, 2012 at 11:32pm
And I concur with Ms Sue.

In our standard way of writing numbers, the lead digit cannot be a zero.

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**stick**, Thursday, August 23, 2012 at 1:08am
Thank you! Glad to know you agree with me.

Does make me wonder, though, if other incorrect info is being given in class.

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