Recent content by eriray

thanks for clearing up sig figs with addition - I forget all the rules! No matter - what really gets me is that +8! So, I will get to the bottom of this :) - I think my daughter gave the problem to me wrong...or ... maybe I just don't know what I think I know. Anyhow, if I clear it up I will be...

LOL! Yeah - I don't worry so much about the sig figs - just put the answer in the same number of sig figs as the lowest number in original problem (which all have 3 sig figs). So, the big question is where does that darn ...+8 come from? I'm really scratching my head over that! The basic rule...

My daughter read the problem to me via IM and a webcam (she's at OSU) so I didn't see how it was written out (it was on her computer) but showed her how I wrote it out and she said that was the way it was written. So, my assumption was it went like this: (3.5x10^-4 + 6.99x10^1 + 5)/7.73x10^-4...

Homework Statement This is a chem problem for adding sig figs with base ten. The problem is: 3.15x10^-4 + 6.99x10^1 + 5 all divided by 7.73x10^-4. I was trying to help my daughter with this. Homework Equations The Attempt at a Solution I can do sig figs pretty well and these kinds of...