1. Okay I know, it's pathetic.

But for some reason, I never learned how to do long devision in school. Now, it sometimes makes things difficult.

Can anybody tell me how to do long devision?

2.

3. Okay.

______
5|562

5 into 56 is 11 to make 55

_11__
5|562
_-55 Carry 2 down
___12

Five into 12 is 2 with a remainder of 2

So you get

_112_ with a remainder of 2
5|562

4. Originally Posted by buffstuff
Okay I know, it's pathetic.

But for some reason, I never learned how to do long devision in school. Now, it sometimes makes things difficult.

Can anybody tell me how to do long devision?
What type of division were you doing in high school? Your in college now so I have to assume you were doing some type of division. Was it that "New Math" stuff? I'm too old to have been exposed to it.

Just curious.

5. I can admit that I am clueless about your math situation, but, for the record, it is long division.....not devision......

6. For the most part, I relied on a good old fashioned scientific calculator to get through high school, and am avoiding math in college.

7. Thanks 2112, but I need a little more than that to learn it. If thats all it took, I would have learned already by staring at my old text books.

8. Seriously, that's all it takes. One number at a time. You still have to know division to do long division. It doesn't look very pretty on this forum, the way I formatted it, but you just divide into one number at a time and carry down the remainders. Like 5 into 52 is 10 with a remainder of 2. That's pretty much it.

I haven't owned a scientific calculator since Trigonomatry (sp?) and Calculus in high school. Also I hear that you should limit your math classes and take the easiest in college unless the major you choose requires math.

9. Yeah. Thankfully, I won't have to take math yet fo the transfer I'm going for. Thats going to help me a lot!

10. Another case of technology ruining yet another young mind

11. And thats a bad thing how? :P

12. It's funny, I would tell you to go search on Google for "how to do long devision". The problem is this site is now #1 on that search...pretty cool.

We owe it all to the spelling

13. Google ads at the bottom provide some good links - and help create revenue to support the site! :wink:

14. Buffstuff, I really think it's in your best interest to learn long division. Did you think about perhaps trying some computer based learning software? You may get stuck with childish stuff, but at least you would learn.

You may want to check this out

ftp://math.stanford.edu/pub/papers/m...-try-again.doc

In any case I wouldn't give up on it, it's more useful then you realize.

15. Yeah, I know. I did have some trouble in school, and sometimes i wish I knew it for practical reasons. I'll get it.

16. I found that so bizarre - apparently significant bodies in mathematics teaching in America decided that the standard algorithms for teaching addition, subtraction, multiplication and long division were actually harmful and should no longer be taught!

I mean, these guys are the education professionals, there must have been some specific reason for it, but what could that possibly be? And how could it outweigh the obvious benefits of not losing the knowledge of how to perform basic arithmetical operations in the absence of a calculator!

As for me, I was never taught how to do square or cubic roots by hand.

17. Well, I can do both, but I wasn't taught how to find roots by hand directly, but more as an aside to the main course. Long division I learnt to do using Number Maze, a program which sadly will run only on early Apples

18. Originally Posted by 2112
Okay.

______
5|562

5 into 56 is 11 to make 55
Not to be too terribly nitpicky, but if you follow the algorithm that is normally associated with long division, this is wrong. You would never divide 56 by 5. Let me explain:

(In this example, 5 is called the divisor and 562 is called the dividend.)

Algorithm (modified to avoid subtraction -- an irrelevant modification to my criticism):
1. Examine the first digit of the dividend (here, it's 5). If this digit is greater than or equal to the divisor (5) (which it is), then call that digit N and go to step 2. If not, write a 0 above the first digit and examine the first two digits of the dividend. If it's greater than the divisor, then call those two digits N and go to step 2, else write a 0 above the second digit and examine the first three digits, etc.

2. Divide divisor into N (here, divide 5 into 5). Write answer as integer with remainder (here, 1 remainder 0). Write the integer above the last digit of N and the remainder below it. Rewrite the integers following N (here, 62) to the right of where you wrote the remainder and subtract from bumber above. Call that new number D.

3. Go back to step 1 using D as the dividend and continue until D equals a number less than the divisor. Set your remainder equal to that last D and you're done.

For example:

Code:
``` ____
5|562

5 >= 5, so N = 5
5/5 = 1 r 0

1
----
5|562
0

Bring digits down

1
----
5|562
062

D=062
0<5, but 06>=5, so N = 06
6/5 = 1 r 1

11
----
5|562
062
1

Bring digits down

11
----
5|562
062
12

D = 12
1 < 5, but 12>=5, so N=12
12/5 = 2r2

112
----
5|562
062
12
2

D=2
Since D<5, we stop.  Our answer is then
112 r 2```
[/code]

19. I used to have a problem with long division. Of course, that was in fourth grade. I never learned it in my old school so when I went to a new school I had no idea what to do. The teacher taught me it. Our next quiz, I got a hundred. My family is great in Math.

20. Excellent, buffstuff, that you can come and get some helpful replies without being shot down. Good luck.

21. Originally Posted by redewenur
Excellent, buffstuff, that you can come and get some helpful replies without being shot down. Good luck.
Anyone seen Buff lately? I kind of forgot all about him

Perhaps I'll go try and track him down.

22. You can find a good long division calculator on www.dol88.com

Step by step mode for better understanding.
All operations capable (addition, substraction, multiplication, division)

User manual available on the web site.

Enjoy

23. Here is an animation of it being done.

http://www.Rockwelder.com/Flash/Longdiv/Longdiv.html

Many do not know but when you get to a remainder, you actually have the exact answer. In other words a remainder of 18 while the divisor is 23 gives you 18/23rds.

That is the exact fractional answer. If you take it out in decimal, you will actually get a less correct answer. Because decimal cannot express that number.

Sincerely,

William McCormick

24. sure it can, just write it out in base 23

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