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However, just because you're using 2 sig figs in your answer, that doesn't necessarily mean that you should use 2 sig figs during your calculations. Two sig figs isn't very precise, so during your calculations you may want to use three or four sig figs, then use only 2 sig figs only when giving your final answer.
As long as the significant figures in your answer match the significant figures given in the problem (or whichever number you are using for calculations), you will be fine. You will get a much more accurate answer if you don't round numbers during your calculations. Just make sure that the significant figures given in the problem match the significant figures in your answer!
Should we be rounding w/ significant figures in every calculation in a problem or just in our final answer? My TA told me that we should, but I recalled Dr. Lavelle saying that we only needed to acknowledge sig figs in our final answer.
Hey, I had the same question too, but after asking my T.A and watching several youtube lessons on sig figs, it is always better to have a couple sig figs in your calculations and once you arrive at your final calculation, you round up the significant figures. For instance, if I knew I only needed 3 significant figures, I would do calculations with 3-4 sig figs. If you keep rounding after every step your final answer may not be precise.
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