Got it shortly after this. Floor was fine. Simply weren't enough decimal points first time I declared the variable, so some integers were rounded up that had, say, .99.

Floor is supposed to round down integers. Why are there two or three tests on the attempt that round up instead?

No matter what you declare descendingOrder to be, there is an error saying it isn't declared.

I pass all three tests, but only about 25 of the 100 attempts. There has to be some kind of error.