[Ap Chem]Significant figures

jac0625
Thu, 04 May 2006 12:23:08 +0000

WAIT~!!! isn’t my calculation right?? aren’t you supposed to actually multiply the figures and then round the part that isn’t significant??

i.e.

31 X 0.7 = 21.7
since the most inaccurate figure is 31(to the unit digit)
you round 0.7 and get 22

i think i learned it this way…correct me if i’m wrong