``Math never fail[s] and cannot be argued.``

``$10,000 times 13.5 = $1350``

OK, I`m arguing. $10,000 times 13.5 = $135,000. Of course you meant 13.5 cents which should be written .135.

So I guess the proper statement should have been,

``Accurate math never fails and cannot be argued.``

Sorry, couldn`t resist the fun. :)