I wonder how many would struggle if it was presented simply a 0-60+70-80+90=? rather than the block of text in the article. At least for me the problem is that

I wonder how many would struggle if it was presented simply a 0-60+70-80+90=? rather than the block of text in the article. At least for me the problem is that when i get a block of text like that i get distracted from the math by scrutinizing how everything is worded, in case there is a trick question.