[opminion]

I think that you mean "numerals", not math in general.

In our system (and in the Arabic "Indian" system, as pointed out by a fellow reply) numerals are written with the least significative figure to the right, so in that sense it's like com.twitter@holysee.

However, the author has acknowledged that there was a minor error in the post, so this is a case of a retrofitted explanation :-)

In fact, notations do not have to be consistent about digit significance. See, for example, US dates (9/11/2001) or German (and Arabic) long-form of most two digit numerals, which are read backwards, as in "four and twenty blackbirds" (happy to be corrected about Arabic...).