Does Anyone Know How to Round Significant Figures?
Well… Ill give you the basics on significant figures. When you start adding and multiplying, there are more rules, but hopefully this will get you started. Most of the time, the figures that are significant are the biggest clump you can find that begins and ends with a non-zero. So: 1024000000 has 4 significant figures 0.0024 has two significant figures. 10.04 has 4 significant figures. 400 probably has one significant figure. If it was written: 400. then it would probably have three. The rules get a little blurry when decimal points get involved. If you see a number like 0.050, you might guess it has two significant figures, since someone took the time and effort to type that last zero. It may be true. The “correct” way would have been to write it in scientific notation. Any time you see a number in sci notation, you can count the number of digits; that’s the number of significant figures. This example would be 5.0×10^-2 if it had two significant figures. If you’re asked to round a
