I am working on an exercise from solid professor. Its a cswp segment 2 practice exercise. I cant seem to get the correct mass of the part. I know that it is looking for 0.323 +/- .001. I can only achieve .0320, or 0.321 if I don't cut into it. I know that is doesn't seem like much, but I cant let it go. I cant find a way to get the correct answer of 0.323.

Has anyone gone thru said exercise? or any input is helpful.