We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.

Hello may some one please expalin this problem to me I seem to not be getting what I'm coming across 


so this lesson in my Algebra one course was about acurate rounding and it gave alittle explination on significant digit's/significant figures  


Here's what it said: 

Significant figure: The amount of significant figures in a number can be found by counting.

Any non-zero digit in the number is significant.
Example: 24 has two significant figures, the "2" and the "4."

Any zero between two non-zero numbers is significant.
Example: 101 has three significant figures.

Any zero that comes after a non-zero number, in a number with a decimal point, is significant.
Example: 35.00 has four significant figures. 


Now I'm getting this part but then I came to a question on my quiz that said 


A rectangle has a length of 9.00 inches and a width of 4.25 inches. What is the area in square inches? Round to the correct significant digits.

Answer blank 1: 38 




So my work for that problem was 9.00*4.25 = 38.25  


so when I looked at this problem all these numbers in it were significant digits and I was under the impression they were. so I felt it would be relativly acurate to round it to 38 but it turns out I got it wrong (This is a computer multiple choice quiz so maybe i was thinking it was programed for you to put square inches after that) so I did but I got it wrong again (Again this was a minor quiz after a lesson so hence you get 3 shots at it) 

so now I was thinking should I round it to 38.3 ? just I'm not sure so I decided to come here to see if I'm doing something wrong. 



 Jun 3, 2019

I believe your answer should have no more or less # os sig digs than the numbers given , which each have 3 sig digits.

SO I think it should be 38.3

 Jun 3, 2019

Thanks alot I apricate your input some one explained it through private message as well to me so thank you for guest's and Emerald wonders detailed input I see what I'm doing and need to THNAKS

HiylinLink  Jun 3, 2019
edited by HiylinLink  Jun 3, 2019

34 Online Users