Thank you from Blockly!

Not sure about ordinal numbers. To the best of my knowledge, it's quite abstract generalization of natural numbers, and such notion should not be presented in general programming system at all. ... Just get it! You are talking about regular meaning of the word, not about special math term (Hungary is famous for math school, and I was afraid they tried to overload the system with math). We have № before ordinal numbers but it's not math sign but rather bureaucratic. I believe it may serve for replacement of #. Probably in some context we may not need special mark for ordinals, I need a fresh look.

And Yes, we use comma in place of decimal point in English. Another place where I was probably mistaken: I followed English in expressions like if block, whereas in Russian it would be more natural to quote "if". I even changed somebody's translations.