long division?

Question

how do you do long division?

Answer 1

I'll try. Example 250 / 10.

2 / 10, doesn't work.
25 / 10 = 2 remainder 5
50 / 10 = 5 remainder 0

Answer 25

Not sure if that helps.

Answer 2

An example of long division,
Say 345 divided by 25

25 ) 345.000(13.8
-25 that is 1 x 25 = 25 : 1 in the answer and subtract 25.
___
95 that is 3 x 25 = 75 : 3 in the answer and subtract 75.
- 75
___
20.0
- 20.0 that is 8 x 25 = 200 : 8 in the answer and subtract 200 (20.0).
_____
0 < = > once zero is reached that division is
complete.

ANSWER 13.8

NB the number to be subtracted must be less than the number above it but as close a multiple as possible.

Answer 3

The way I do it is hard to explain but it works for me ... though i'm quite comfortable around numbers.

Here's an example

378 Divide by 14

I know that 10 x 14 is 140 so I then double that to know that 20 x 14 must be 280. I then do a quick sum that I now have 98 left to figure out (378 - 280) because I already know that 20 x 14 is 280. I then just need to know how many times 14 goes into 98 ... which is 7
So the answer is 20 + 7 ... 27

It sounds long winded but if you always try to work out things to the nearest 10 or even 5 then it makes things much easier

It works for multiplication too.

Answer 4

In my school we teach long division by division by successive factors.

For example, if you wanted to divide something by 24, you would think of two numbers that multiplied together to make 24 (eg 4 and 6).

You would divide the number by 4, and then divide the answer to that sum by 6.

Obviously this method isn't very useful when dividing by a prime number, but it is often a quicker method than the old, fairly long-winded paper and pencil method.

Answer 5

There would be no point in setting out a long division sum here as you would write it on paper. Unfortunately Yahoo Answers removes all leading spaces, and that would destroy the layout, which is essential for giving a clear explanation.

Answer 6

go to the bbc gcse site it has loads of stuff like that. i used it for an aptitude test i am now a long division master. It is a step by step guide.

Answer 7

4m-a million | 12mmm +21mm -14m + 15 via fact that's 12m^3 you recognize the 1st area must be m^2 and four is going into 12 thrice. So attempt 3m^2 (4m-a million)(3m^2) = 12m^3 - 3m^2 + 12mmm + 21 mm - 12mmm + 3 mm (undergo in recommendations the signs and warning signs ought to alter via fact of minus) ---------------- 24 mm -14m + 15 now 4 is going into 24 6 circumstances and you like mm so multiply via m attempt: 6m (4m-a million)(6m) = 24mm -6m +24mm - 14m -24mm + 6 m ------------ - 8 m + 15 now 4 is going in -8 adverse 2 circumstances and you basically want a million m so no might desire to multiply via an m attempt: -2 (4m-a million)(-2) = -8m + 2 -8m + 15 +8m - 2 ------------- 13 putting all of it jointly your very final answer is 3m^2 + 6m - 2 the rest 13

Answer 8

well for starters u have to divide the number your dividing.why don't u ask the problem

Answer 9

These days I do it using a calculator. First you need to tell us how old are as most pupils and students these days are allowed to use a calculator.