### Significant Figures When Multiplying and Dividing

Posted:

**Sun Apr 15, 2018 10:06 am**What is the difference between the amount of significant figures needed when multiplying and the amount of significant figures needed when dividing?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=9&t=30705

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Posted: **Sun Apr 15, 2018 10:06 am**

What is the difference between the amount of significant figures needed when multiplying and the amount of significant figures needed when dividing?

Posted: **Sun Apr 15, 2018 10:39 am**

They have the same rule: for both cases, you would use the least number of sig figs given in any number in the problem to determine how many are needed for your answer. :)

i.e. 2.8*3.48= 9.7 (used two sig figs as the least number of sig figs is two due to 2.8)

i.e. 2.8*3.48= 9.7 (used two sig figs as the least number of sig figs is two due to 2.8)

Posted: **Sun Apr 15, 2018 2:49 pm**

You need the same amount of sig figs in order to be able to multiply or divide.

Posted: **Sun Apr 15, 2018 2:52 pm**

This confuses me too! I found a helpful video that might be good for you to take a look at though:

https://www.khanacademy.org/math/arithm ... nt-figures

https://www.khanacademy.org/math/arithm ... nt-figures

Posted: **Mon Apr 16, 2018 12:07 am**

Hello, there is no distinct rule for counting significant figures for both multiplication, or division. they both follow the same general pattern of sig figs.