I have DD in 4th who is working a year ahead in math (so she is doing 5th grade math for November right now). I forget what the math book is (I'm awful) but it is a common one. NOT Everyday Math.
long division--DD recently finished a unit on multi-digit long division with remainders, so 5th for the full skill (well, no decimals). They may have done single-digit w/ no remainders last year? I think so.
double digit multiplication--did last year (in 3rd grade), so 4th. Maybe she did some in 3rd(really 2nd)? But I don't think double digit times double digit.
perfect square roots--already covered this year, so 5th
measuring angles--hmm; actually measuring? Not yet covered, but they did learn to ID acute, obtuse, right, and all that last year in 4th
adding and subtracting fractions with common denominators--4th; they also covered adding and subtracting with different denominators in 4th, IIRC
