# Math help??? Has anyone here in MyLot land ever heard of Front End Rounding?

@Christmas2006 (1661)

United States

March 17, 2011 8:58pm CST

Have you heard of this and do you understand how to do it? I understand rounding, but this is throwing me beyond dizzy blonde! So if anyone can explain it to me I will very much apprecieate that! I thought I would have this simple, right ask the kids or parents with the kids in school. They had no clue to what I was talking about!

2 people like this

4 responses

@rog0322 (2829)

• Cagayan De Oro, Philippines

18 Mar 11

Hi Christ,
FER It is also called front end estimation, rounding off the numbers to the nearest group of hundreds or thousands to eliminate small increments.
Example: 4996+8986 is rounded to 5000+9000 to get 14000.
It is usually applied to rough or bulk estimates, not for precise measurements.

1 person likes this

@Christmas2006 (1661)

• United States

18 Mar 11

that part of it I understood, but then they did more mixed numbers and I went to like your saying 5000 and it wasn't right, I guess because it was like 4565 and I think they wanted 4600 not the 5000 but I wasn't understanding how I was to know the difference. I don't think I explained it right but I thought some numbers one time I droped and the next time I did the same and it was wrong. Thanks for your help.

1 person likes this

@GardenGerty (159790)

• United States

18 Mar 11

I even went to a math website to try to be sure to tell you the right thing and it confused me. It means starting at the left end to get your estimate or rounding, is all I can tell. I hope someone understands it better than I do.

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@Christmas2006 (1661)

• United States

18 Mar 11

That was me, too. I tried a website and couldn't get it and in the labs it explained it but I just have a hard time learning something new, especially when it comes to the math so I was hoping on here I could find someone to explain it better or more detail. Thanks for trying.

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@JoyfulOne (6232)

• United States

18 Mar 11

My grandson's math touched on this just a few weeks ago. At first I thought 'what?!' We never did that in school. Front end rounding is used when you just want to estimate something. Each number would be rounded to the higest place, and all of the numbers become a zero (except for the first number.) when it's a four digit number, you keep the first two numbers and make the others zeroes. If it's a 3 digit number, you keep the first number and change the others to zero. Here's an example:
5587 (and here in estimation) 5500
+ 833 " +800
---------- ---------
= 6420 = 6300
I think they use it as just a rough estimate, and with reducing the digits to zero is supposed to make you come up with the estimate quicker. Not sure if I've explained it good enough to make it understandable lol. (I know homework was a definite headache that night until we got the drift of what he was actually supposed to be doing to get the estimate.)

@JoyfulOne (6232)

• United States

18 Mar 11

Hmmm, that didn't copy over right when I hit enter. The example I used is: 5587 + 833 = 6420; the example with it front rounded would be: 5500 + 800 = 6300 I don't know why the spacing came out that way (above)?!? Sorry 'bout that!

@JoyfulOne (6232)

• United States

18 Mar 11

Brave? Nope; perplexed with the new math: yes!! See, now that's exactly what I thought at first, and how I was taught to do rounding. 5587 would become 5600. I don't know who or why they came up with this new kind of rounding, but to me it doesn't make it one bit easier. And as far as that goes, I think it actually makes it harder to figure out! As far as the lab coming up with the same #...I've noticed on our schools website, as well as homework examples, have it wrong, and then we get a note from the teacher that it printed wrong or something. Duh?! And they wonder why American kids have problems with math? Haha, they should go back to the old way of teaching math, it was easier to understand, and it actually made sense!! Good luck Christmas!

@Christmas2006 (1661)

• United States

18 Mar 11

You are a very brave grandmother! I remember when my daughter started algebra in school and I sent her to the neighbor to do the homework. I thought I would have my granddaugher (her oldest!) help me but mom informed me that she's flunking algebra. I just hope this has nothing to do with algebra! I start the college algebra class next week and I was doing the labs today to refresh my math and I just could not get this type of rounding. I think I have it, like you explained it, and when I enter the numbers - it tells me I am wrong! Ha! One of them I kept putting the number in and it kept telling me I was wrong and no matter how I worked it I came up with the same #! I finally went through their lab explanation and I swear they came up with the same #...maybe I reversed a number and just didn't see it?
I think looking at your example what I am doing is rounding 5587 to 5600 and your saying it should be 5500. If I am lucky I won't have any more of those labs! Thanks so much for your explanation.

1 person likes this

@3SnuggleBunnies (16374)

• United States

18 Mar 11

I have no clue what you are talking about either so I am afraid I cannot be of any help. I know my 8yo finds it annoying for me to want to help her, but I have explained to her one day I will not be able to help her with her homework and she will need to get help or someone else to proof her work.

@Christmas2006 (1661)

• United States

18 Mar 11

It amazes me that everyone I ask has no idea what I am talking about. I am hoping its only in these labs and nothing I will have to have mastered. I remember my mom trying to help me with my homework (60's) and she couldn't do it. I had noonne else to help me so this is probably why I had/have so much trouble with math....I can still remember having my fingers slapped with a ruler because the teacher thought I was counting on my fingers when I was in 2nd grade! I think my kids were in 5th grade when I was beyond being able to help them with home work anymore. Scary isn't it. Thank you for your response.