







Rounding 
20111214 

From seth: A decimal number rounded changed to 23.7 after it was rounded.
Give a decimal number that is less than 23.7 and another that is greater than 23.7 that each round to 23.7.
Explain to what place each number was rounded. Answered by Penny Nom. 





The nearest one and a half and the nearest inch 
20110202 

From Miranda: REASON:sarah gave the same answer when asked to round 4 seven eighth inches to the nearest one and a half and the nearest inch. explain why sarah is correct? Answered by Penny Nom. 





Greatest Number in Rounding Off 
20090625 

From paucath: what is the greatest number that can be rounded of to 4000 Answered by Janice Cotcher. 





A 4 digit number 
20090412 

From kaylin: When a 4 digit rounded to the nearest thousand,it rounds up to 3000. the hundred digit is less than 6. the digits in the ten and ones place add to a sum of 8 and they are the same . what is the number Answered by Robert Dawson and Penny Nom. 





A three digit number 
20090120 

From marcha: when this three digit number is rounded to the nearest ten, the sum of its digits
is 16 the hundreds digit of this number is 8 and the ones digit is 5, what is the number? Answered by Robert Dawson. 





Compatible numbers 
20081002 

From jeff: what exactly are compatible numbers,
math problem is:
Estimate the total weight of 2 boxes that weigh 9.4 pounds and 62,6 pounds
using rounding and compatible numbers. Which estimate is closer to the actual weight and why? Answered by Harley Weston. 





Rounding 
20080509 

From wendell: write a three digit number that when rounded to the nearest ten and the nearest hundred, the answers are the same Answered by Penny Nom. 





Rounding 
20071105 

From Charles: I have been asked to explain why rounding to 3 decimal places
has become the adopted industry standard in mathematics for
showing measurement calculations. I understand that it makes
sense to round financial calculations to 2 d.p. because then it's
rounded to the nearest penny (or cent) but why would the standard
in measurement be 3? Answered by Stephen La Rocque. 





Rounding off 
20070415 

From deepak: find the smallest and the greatest numbers which when rounded off to the nearest thousand, become 6000. Answered by Stephen La Rocque. 





Estimating products by rounding 
20060924 

From Ann: my son is in the fifth grade and they are doing estimate products rounding both factors, he knows how to round off a decimal, but he is having a problem doing a decimal and a whole number for example 5.96x3=? He knows the 5.96 round off to 6. but what does the 3 round off to? Answered by Penny Nom. 





Round to the nearest tenth 
20060506 

From Lisa: how to round a decimal fraction to the nearest tenth Answered by Penny Nom. 





How do you round off 89,100? 
20060419 

From Jeannie: My home work says to round each number to the place of the underlined digit. It has 89,100. The underlined number is 9. What do I do? Answered by Stephen La Rocque. 





how do i round up 9.6 to the nears ones 
20050809 

From Carlos: how do i round up 9.6 to the nears ones Answered by Penny Nom. 





Round to hundredths 
20021119 

From Brittany: Can u tell me how to do a problem like this:
35 divded by 4.8= Round to hundreths. Answered by Penny Nom. 





Rounding 27.27 
20021103 

From A parent: 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. Answered by Penny Nom. 





Multiplication of fractions 
20010108 

From Angela: Questions:
1. represent multiplication of fractions via an area model 2. describe why, not just how, to round decimals Answered by Penny Nom. 





Rounding 
20000914 

From MaryAnn: How many whole numbers rounded to the hundreds place, round to 400? Can you also explain why? Answered by Penny Nom. 





Rounding 
20000415 

From Tawana Brown: I was uncertain as to whether a number such as 85.25 rounding to the nearest tenth would be 85.3 or 85.2. I thought I had heard somewhere that if 5 is the last number that you don't round up. But I have also heard that anything 5 and above you do round up. It's been awhile since I've done rounding, so I need a refresher course. Answered by Walter Whiteley and Harley Weston. 





Spreading a rumor 
19990913 

From Bornstar14: 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? Answered by Penny Nom. 

