Thread:Cdragon13/@comment-29331244-20140608024802/@comment-24808864-20140608054023

Here is a sentence that uses both forms to help illustrate the difference:

I wrote the number 10 on ten pieces of paper.

I generally know the correct usage of 'mathematical grammar' pretty well because I have been writing advanced mathematical literature for a while and I have had occasion to use many different meanings of the idea of numbers in my writing.