BBC Home

Explore the BBC


28th November 2009
Accessibility help
Text only
Go to Schools Revision page
KS3 Bitesize Schools

BBC Homepage

Contact Us


Like this page?
Send it to a friend!

 
New?
Become a member
Returning members:
Sign in
You are here > mbks3bitesize message boards > Maths > How do you long multiply?

Discussion:

How do you long multiply?

Messages  1 - 15 of 15

 
 
 

Message 1 - posted by Maths Teacher To Be (U14073336) , Aug 14, 2009

I can do the box method but i need ot do some maths homework in long multiplication with showing our working out.
Please help.
Complain about a message       

Message 2 - posted by U14102215 (U14102215) , Aug 14, 2009

WELL TS SIMPLE ONCE YOU GET USESD TO IT
FOR EXP .....

22
22 x
44
44
88 =

This is a reply to this message

Complain about a message       

Message 3 - posted by Maths Teacher To Be (U14073336) , Aug 14, 2009

No offence but, I need step by step instructions.
Sorry for the inconvinience.

If anyone can please tell my STEP BY STEP instructions

Thank you x x

This is a reply to this message

Complain about a message       

Message 4 - posted by platinumeverybody (U14070399) , Aug 26, 2009

I'll do an example with 362 x 24. First you set out the sum like this.

362
x 24
____

_____
_____

Now ignore the tens digit of the bottom number (ie 2) and just 362 by 4 = 1448. Put 1448 underneath the first line. So now it looks like this.

362
x 24
____
1448

____
____
Now put a 0 underneath 1448.

362
x 24
_____
1448
0
_____
_____
Now ignore the units digit (ie 4) and multiply 362x2 = 724. Put 724 by the 0 to make 7240.

362
x 24
____
1448
7240
____
____
Now add up th 2 answers 1448+ 7240= 8688. This is your answer. The whole sum is basically just multiplying 362 by 4, then 362 by 20, then adding them up because 20+4=24.

362
x 24
____
1448
7240
____
8688
____


Hope this helped smiley

This is a reply to this message

Complain about a message       

Message 5, Sep 1, 2009

This posting has been hidden during moderation because it broke the House Rules in some way.

This is a reply to this message

       

Message 6, Sep 7, 2009

This posting has been hidden during moderation because it broke the House Rules in some way.

This is a reply to this message

       

Message 7 - posted by eb7eb7 (U14114600) , Sep 14, 2009

I was told in maths today to use the box method, although he said it was great to know I usualy use long multiplication

This is a reply to this message

Complain about a message       

Message 8 - posted by U14169654 (U14169654) , Oct 11, 2009

how do u do dividing with numbers like, 24 divied by 6698 for example, as i only know divinding with one digit numbers into big numbers. please help!

This is a reply to this message

Complain about a message       

Message 9 - posted by U14157744 (U14157744) , Oct 17, 2009

sorry i would love to help but i have a problem with the same thing sorry

This is a reply to this message

Complain about a message       

Message 10 - posted by U14180574 (U14180574) , 5 Weeks Ago

lol

This is a reply to this message

Complain about a message       

Message 11 - posted by U14178125 (U14178125) , 5 Weeks Ago

i didnt know how do reply to this question because it has been replied to and it is how it is done but i smooch want to know how to devision the easy way i think its like this

e.g
09
__
5/45
9
So the answer is _ is it?

This is a reply to this message

Complain about a message       

Message 12 - posted by U14205724 (U14205724) , 3 Weeks Ago

hey

long multiplacation is easy

u asked for step by step instructions so here

say the question was...

88
x32
6
1. what you would do is times 8 by 2 and right down your answer (as above :D)

2. then 8 times 2 again and if im right you would have is 176

3. do 8x3 then agian like before, you should get the answer 264

4. add them together then tada you have your answer

glad to help xx

This is a reply to this message

Complain about a message       

Message 13 - posted by U14211412 (U14211412) , 2 Weeks Ago

well if it is 13x23
you times 13 by twenty and then by 3 and add the answers together and you get 269 i think erm

This is a reply to this message

Complain about a message       

Message 14, 2 Weeks Ago

This posting has been hidden during moderation because it broke the House Rules in some way.

This is a reply to this message

       

Message 15, Last Week

This posting has been hidden during moderation because it broke the House Rules in some way.

This is a reply to this message

       
 
Getting Involved help: How to reply to messagesThis link opens in a new popup window
Complain help: Alert us about a messageThis link opens in a new popup window
Online Safety help: Are you being safe online?This link opens in a new popup window

Messages  1 - 15 of 15

 



About the BBC | Help | Terms of Use | Privacy & Cookies Policy