### 200. decimal sig figs

Posted:

**Sun Oct 07, 2018 12:43 pm**Is 200. the same as 200.0? I have never seen a decimal without any numbers following it after so I am kind of confused. Also, would it be 3 sig figs or 4?

Created by Dr. Laurence Lavelle

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

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=9&t=33225

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Posted: **Sun Oct 07, 2018 12:43 pm**

Is 200. the same as 200.0? I have never seen a decimal without any numbers following it after so I am kind of confused. Also, would it be 3 sig figs or 4?

Posted: **Sun Oct 07, 2018 12:47 pm**

200. would be 3 sig figs and 200.0 would be 4 sig figs so they would be different

Posted: **Sun Oct 07, 2018 4:40 pm**

200. would be 3 sig figs, but, if it were just 200 without the decimal then it would only be 1 sig fig. 200. is not the same as 200.0 because then that would be 4 sig figs since the zero does count after the decimal.

Posted: **Tue Oct 09, 2018 7:24 pm**

200.0 offers more precision than 200., so it follows that 200.0 has one more significant figure than 200.

Posted: **Sun Oct 14, 2018 10:18 pm**

Usually trailing zeros are not significant, unless they use a decimal point. So 200 will only have one sig fig, but 200. has three. Then, 200.0 has four sig figs.

Posted: **Mon Oct 15, 2018 10:26 am**

If your answer is 200 and need to write your answer in 3 sigfigs you can write 200, but if the lowest given value from the question has 4 sigfigs you would need to answer in 4 sigfigs as well. You would write 200.0 which has 4 sigfigs.