Mandy Jane's Corner

mandy jane · 2013-03-17 06:08:34

Hi steveb mandy here could you do a step by step on long division for me as pleas as i get confused where toput the numbers?

SteveB · 2013-03-17 06:39:30

Yes that is fine. Right I have trimmed my image file down so as to just show you the first step
that I did in my answer. Can you work out what the next thing to do is? Remember that we are
dividing 16549 by 13 here. All I have really done is set out the answer, observed that trivially
1 divided by 13 gives us 0 remainder 1 and dropped down the 6 with an arrow.
So we have the appearance of the number 16 as the next bit of the problem that we are trying
to divide by 13. What happens next?

mandy jane · 2013-03-17 06:45:32

hi steveb how did you get your images on the computer then please? it would be easer if i could do the same?

Bob · 2013-03-17 07:36:18

Bob · 2013-03-17 07:47:07

SteveB · 2013-03-17 07:54:31

To get the numbers to appear centrally click and highlight the cells that you wish to make central.
Then click the right mouse button and choose "Format Cells", choose "Alignment" and then
choose "Center" for the "Horizontal " and "Vertical" text alignment.
Then go to the "Font" option at the top. Select a reasonable size like "16". Click OK.

To get a line at the bottom of a row of numbers:
Select the cells that the numbers are in or will be in.
Click the right mouse button and choose "Format Cells", and choose "Border", then
select the bottom left of the "line style" options. Then select which "Border" you want
and click OK.
I have created the lines of the division entirely using the "Border" option.
I will stop at that point so that this post does not go on for too long, but you could have
an experiment with Excel to see what you can do.
(The next stages are to get a "PRTSC" (Print Screen) and to paste it in Paint and then
to "Crop" the item, do any editing in Paint that it needs and save the file as a GIF file
remembering to make it reasonably small so as not to use excessive memory).

mandy jane · 2013-03-17 08:09:29

Hi steveb mandy here. Just wondered what the timetable was for next week? Can you leave me a message on here please?

Mathegocart · 2013-03-17 12:01:11

SteveB,good job.

Mandy here are some questions to solve.

1. 9102 divided by 9
2. 1095 divided by 5
3. 3456 divided by 6
P.S.what grade are you in and can you do remainders? if so,do with remainders.

Mathegocart · 2013-03-17 12:03:15

bob bundy wrote:

That doesnt work for me.:(:(:(:(:(:(:(:(:(

Bob · 2013-03-17 20:29:20

hi mathgogocart

These instructions are for a PC running Windows with MS Excel and Paint. I'm fairly sure Mandy has what is needed. If you give me more details about why it didn't work for you, I'll try to think up a 'work-around'.

Bob

SteveB · 2013-03-18 02:57:40

I am going to give you the next step of the 16549 divided by 13 question.

Notice that the first "0" in the answer at the top (top left) comes from the fact that 0 x 13 = 0.

We get the first remainder by 1 - 0

The remainder of this first bit was 1. This is "worth" ten when it is shifted to the right.
This is added to the 6 which we dropped down and they add to give 16.

Then I note that 1 x 13 = 13. The 1 from this is the next digit of the answer.

Now what do we do ?

mandy jane · 2013-03-18 03:21:17

takeawy 16-13 = 06 am i right?

SteveB · 2013-03-18 03:23:12

You are right to subtract them. That is to say the "16 - 13" bit was right.
However 6 is not right. Try again.

mandy jane · 2013-03-18 03:24:57

i looked at it aging is it 3?

SteveB · 2013-03-18 03:27:57

Yes it is 3. Now I will show you another image. Try to figure out what happens next and tell me.

mandy jane · 2013-03-18 03:30:23

you now bring down the 5 am i right?

SteveB · 2013-03-18 03:32:37

Yes that is correct. I will show you an image of that and can you see the next step?

mandy jane · 2013-03-18 03:36:17

the next step is it 13x35?

SteveB · 2013-03-18 03:37:30

No that is not correct.

Any more do you want to try again.

mandy jane · 2013-03-18 03:39:34

it should of been 13x5 don't go am i right?

SteveB · 2013-03-18 03:39:58

How many times does 13 go into 35 ?

mandy jane · 2013-03-18 03:44:18

13 goes into 35 2times am i right?

SteveB · 2013-03-18 03:45:25

Yes that is correct. Now what actually is 2 x 13 ?

What is the remainder ?

mandy jane · 2013-03-18 03:47:49

2x13=26 with 9 left over am i right?

SteveB · 2013-03-18 03:48:49

Which number goes in the answer bit at the top ?

Math Is Fun Forum

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