







Rounding 27.27 
20021103 

A parent pose la question : If you have a problem 27.27 and you need to round to the first 7 the answer would be 27 Would 27.0 be acceptable as well or is it completely wrong. Penny Nom lui répond. 





Approximating 260 divided by 3 
20010402 

Andrew pose la question : Choose the letter of the best estimate. 260 divided by 3 a. 60 b. 70 c. 90 d. 100 Paul Betts lui répond. 





Finding roots 
20010201 

A student pose la question : My math problem is right now we are working on roots. I don't quite understand how to find the answer to the problems, i was wondering what is the easiest, and fastest way to find the answers to roots? Penny Nom and Claude Tardif lui répond. 





Calculating a square root 
19991028 

Jonathan pose la question : What is the formula for calculating a square root? Penny Nom lui répond. 





Square roots without a calculator 
19990914 

Josh Weiner pose la question : Is there any way to find out a square root without a calculator? Harley Weston lui répond. 





Spreading a rumor 
19990913 

Bornstar14 pose la question : There is someone who wants to spread a rumor within 7 days to 250,000,000 people. he wants to know how many people he should tell on the first day (assuming the rumor is passed by everyone who was told to the same amount of people) so that everyone knows on the 7th day. What I did is the 7th root of 250,000,000. this answer is not possible unless rounded. is it okay for the number to be approximate? Penny Nom lui répond. 

