Questions & Answers about Jag förstår inte alls kalkylen.
How does alls change the meaning of inte here?
Adding alls (at all) to inte (not) creates the emphatic negation inte alls (not at all). Notice how they stay grouped together right after the verb förstår, occupying the standard spot for sentence adverbs.
Can I put inte alls at the end of the sentence like we do in English?
Does kalkylen just mean any math calculation?
Not exactly. While it means "the calculation", en kalkyl usually refers to a financial estimate, a budget calculation, or a spreadsheet model. If you were talking about a basic arithmetic math problem, you would more likely use uträkningen.
How does the word order change if I make this a subordinate clause?
If you put this into a subordinate clause (like "Han tror att..."), the BIFF rule applies, pulling the negation before the verb. The phrase inte alls moves as a single unit, giving you: Han tror att jag inte alls förstår kalkylen.