This week we are moving on to this topic.

What can you find out?

What do you already know?

What do you want to find out?

Here are a few sites and places to start your flip learning.

http://www.topmarks.co.uk/Flash.aspx?f=bingotimesordivide

https://www.youtube.com/watch?v=VwjTUTUB2xw

https://www.mangahigh.com/en-gb/math_games/number/decimals/multiply_and_divide_decimals_by_10,_100,_1000

http://www.bbc.co.uk/skillswise/worksheet/ma11divi-l1-w-dividing-decimals-investigation

Multiplying and dividing by 10, 100 and 1000- Who Wants To Be A Millionaire?

Good luck!! Let me know if you find anything better

Mrs Mansfield

I need some help with dividing high numbers

What rules do you know about this that will help?

I’m going to show how to times. 10,100 X 3 eqles to 30,100. hers one more; 10 X 10 eqels to 100.

Check your first number sentence Savannah. What about dividing?

when you divide numbers,you move to the right, when you multiply, you

move to the left

Isobelle Daniel

Tell me a bit more about how many spaces you need to move.

if you are multiplying by 10 you move 1 space to the left if you are multiplying by 100 you move 2 spaces to the left

and if you are dividing by 10 you move one space to the right

if you are dividing by 100 you move 2 spaces to the right.

they all have ziro and ones me and Robert

What have you found out?

I’m gonna tell you how times and divied with 10,100. 10,100 times 10 equals to 10,1000.

Tell us then!!

say if you have 10,100 times 20 equals to 20,100. this is how I did it: The first ten turns into 20 because your timesing by 20.And the other 100 at the endstays the same so that makes 20,100. that’s how I figerd it out. heres a divid one: 10,100 dived by 80 equals to 20,100. Amy helped me on the divided one.

Wouldn’t we multiply by 10 then 2? to multiply by 20?

so you just add zeros on the end and can have as many as you need .

Why is this rule dangerous when you are multiplying by 10, 100 and 1000?

its dangerous because when you use decimals it doesn’t work because the number will stay the same

Number lines help with division because you add by whatever divvied it by

you have to times it till you reach the number that’s been divided. You record how

much you times by and if you have a reminder put r and whatever you have left to get to the number.

Do you need to use a number line when multiplying and dividing by 10, 100 and 1000. Are you looking at using different divisors?

Not always I was just showing how much number lines help with division and yes number lines help with times 10,100,1000 also there’s another way column division.

When you are using these divisors, is using a number line the most efficient way?

I was just showing how much number lines help in division and yes it does work on dividing by 10,100,1000.and there is another way column divivsion

here is a video which will help you with your high numders http://www.bing.com/videos/search?q=mutipliying+song+10%2c000&adlt=strict&view=detail&mid=88C5AEF123843847153188C5AEF1238438471531&FORM=VRDGAR

How has it helped you Tommy? Tell us what you have learnt.

here is a video which will help you with your high numders in maths

http://www.bing.com/videos/search?q=mutipliying+song+10%2c000&adlt=strict&view=detail&mid=88C5AEF123843847153188C5AEF1238438471531&FORM=VRDGAR

Don’t just give us other websites Tommy – tell us what you have learnt from them.

THIS WILL HELP YOU:

4.8 x 10 = 48

4.8 x 100 = 480 100 should be only 1 0 at the end

4.8 x 1,000 = 4,800 1,000 you add 2 zeros

Every one can do this 👍👍😀😀🙂🙂😄🙇🙇

Great answers Aadam. Tell us a bit more about what you mean about the zeros.

If your doing decimals you don’t add a zero every time because it will be wrong and if your doing short number some times it will work

What ever sign it is times,divide,multiply, add and many other signs you can swop them around example:

100=10+10

sometimes when you divide a numberline might help you. you can do many signs even tims on a numberline,but some other people may think that you cant do that.

example:

30 30 30 10 on a number line this woll show,times 30 times 30 times 30 times 10 makes 100 so you can do that.

Is 100 = 10+10??

no sorry I ment 10 times 10 makes 100

What happens to the digits when you multiply by 10 Adela? What about 100?

you did not see what else I did read the hole thing it also tel,ls you more.

https://www.youtube.com/watch?v=JI_N3iVTLfM heres a link what I found and I also going to tell you more about x and divide by 10,100 or 1000

Tell us then!

I have on the DL and Mr blog bit by me ok Mrs Millard

here is an example of multiplying moving to the left and here is an question 4.8 x 1,000 = 4,800

How many spaces have you moved the digits Tom?

What happens when you are dividing by 10, 100 or 1000?

you move 1 space to the right

you move one space to the right

When do you move one place to the right? Can you give me an example?

When your timsing something you add the same number again and again as much as you times it by.Exmple:10+10+10+10+10+10+10 is the same as 10 times 7or seven lots of 10.when your timsing remember timsing is commutative for example:4 times by 5 5 times by 4 you’ll get the same answer because even putting it two different ways you’ll still get 20.

Remember that we are talking about multiplying and dividing by 10, 100 and 1000 – nothing else yet!

When multiplying by 10,100,1000 you move to the right and when dividing you move to the left so here is a example

4.8 x 1,000 =4,800 and if you need to get to 900 for the answer it would be 9×100 or 900 divided by 1= 900

Great explanation Hriday? What are the rules about how the digits actually move?

x and divide is to do with place value and then when you use place value with x by 10,100 or 1000 you e.g. take 35 x 10 you move it to the right so the answer would be 350.But when you dived by 10 you move 1 space to the left 100 you move 2 spaces to the left 1000 3 spaces to the left e.g. 365 divide by 100 = 3.65 Mr means multiply right DL stands for divide left.

You’re right, it has a lot to do with place value – How? 5 x 10 – how many spaces right? I like the idea of MR to help you to remember this.

when you x by 10 you move 1 space to the right x by 100 2 spaces to the right x by 1000 3 spaces to the right.

What would 33 multiplied by 10 be then?

x 10 digits move 1 space left.

x100 digits move 2 spaces left.

x 1000 digits move 3 spaces left.

divide10 digits move 1 space right.

divide100 digits move 2 spaces right.

divide1000 digits move 3 spaces right.

how did you know ?

Well remembered! can you give me some examples, including decimals.

1.5 x100=1500

if you times it by 1000 .5 turns into 500

if you times it by 100.5 turns into 50

if you times it by 10.5 turns into 5

here is an example of multiplying moving to the right and here is a question 4.8 x 1,000 = 4,800

You’ve already blogged this Tom!

iff you you get it righte your goin well like 1000 x 2000 = 3000

maths might be hard but very in portount and never ever move left in x because its wrong you move to the right

Are you adding or multiplying Brandon?

Brandon please tell me more about multiplication I do understand you I just need you to give me some more info

are you sure 1000×2000=3000?

When you multiply digits always move to the right. if you have 10 they move 1 space,100 moves 2 spaces, 1000 moves 3 spaces but at multiplying they move to the left.

Do digits move to the right if you are multiplying?

Check which direction Adela. Do numbers get larger or smaller when you multiply?

When your x 10 you change the tens into the number your x by divide and times are inverse of each other there is also a special method for division and a collum method for multiplication if you have a number with a 0 an its in the tens and you want to x it by a number with other 0 you could put a place holder but it wont always work .

Give me more detail about how the digits move.

its easy when you move it to the right you multiply it when you move it to the left you divide it here is a link t help you.

https://www.bing.com/videos/search?q=song+of+how+to+mutiply+and+divide+numbers+for+10%2c000&&view=detail&mid=ECCE75EBD494F2F81787ECCE75EBD494F2F81787&FORM=VRDGAR

Check which direction you are moving in Thomas.

sorry I may have got mixed up.

Multiply way is a quick way of adding together several lots of the same3 number or quantity.Dividing is a quick way of subtracting several lots of the same number or quantity or splitting it up into equal groups.Mutliplying and dividing are the opposite or inverse of each other.

Tell me specifically about multiplying and dividing by 10, 100 and 1000.

Multiplying by 10 you can use a place holder and in 100 and 1000 and change the beginning number to the number your x by to the tens value.

in multiplying you slide the decimal point to the right but in division you slide to the left

heres an example of multiplication

5.7 x 2,000 = 57,000

How do the digits move Lewis? Check your number sentence.

Divide: divide means where you have a number, 1,000 and divide it by the number you want to,1,000 divide by 10= 100.

decimals: so if you had decimals for example 3.2 x 100 you would add one zero [place holder] and if you add 1,000 you wold add two place holders.

if you times 10 by 1,100 it would by 1,110.

when you divide by 100 every figure moves to two places to the right. that means thousands become tens, hundreds become units, and tens and units become a fraction of a unit.

I am going to give you a number 270 now the question is,

what is 270 divided by 10.

answer what you think the answer is, comment below

How do we move the digits before adding any place holders?

Check your comment about 10 x 1,100.

What fraction of a unit do the tens and units become when you are dividing by 100?

You tell me the answer Cheynelle.

correction :if you have decimals ?

what figure ?

why two places ?

what is a fraction of a unit ?

answer me now

Chelsea

whole numbers 25 multiply by 10 = 250 if we take the number 2.5 just adding a 0

is wrong 10 resembles0100 and 1000 mr stands for multiplying to the right depending on how many zeros are in the number you would move to the right dl stands for divied to the left dp is swhort for decimal place

You’re right – just adding zeros is a dangerous rule. Why?

chealsey what do you mean by resembles?

http://www.mathsstar.com/pdf/decimby10.pdf.

http://kids.britannica.com/lm/games/GM_5_5/GM_5_5.htm

play this game this mite be good for Mrs Mansflieds class and is realy fun so I recomend this game

times is where you times a number by another number and their is another way like 2×2=4 which is doubling. division has a special method to it.

Can you tell me more about this method?

if you times you move the whole number one space right. if you times you move it to the left

Give me some examples? Does this help others understand?

4.8 x 100 = 480 4.8 x 1000 = 4800 4.8 x 10,000 = 48,000

so what multiplying and dividing has to do with place value because when multiplying you move to the left and when dividing you move to the right

Can you give some examples? This might help others?

for example 60 x 10 equals 600 and 6×10 equals 60

Can you show everyone how they slide? What is the link to place value?

the way you do it you move to the <—– and you divide go to the other way

Can you give some examples to help others?

check this out it will realy help

http://kids.britannica.com/lm/games/GM_5_5/GM_5_5.htm

I don’t think this helps alot

multiply you move to the left when you subtract you move to the right Charlie and kayden

How many places? Why do we do this?

Are you sure 1000×2000=3000 from Jody and Tonito

we linked arms and moved to the left and to the right and put a decimal point between two of us.we used straws for commas. we said about the straws ten will go into bundles

multiy you movie to the left to subtract

We’re talking about multiplying and dividing Jody – not subtracting!

when you times ten times ten you can get sweets with ten in a packets and then you slid it to the left and get a big packet and you will have one hundred off them

mrs mansfield done an example with hariboes there is ten swets in hario boe packet and if you add ten more it wood de ten

Am I adding? how many? Wasn’t I putting ten bags together to make 100?

I went on cool maths4kids and there was races on the game and it tells you multiplication

me and Thomas looked at math 4 kids and we played times tadle game and wen you got it rig ht it wood send you forward an ib was playing with pelpol and jet ske adition wich is adding nd sudtracting

how does that tell you about multiple by 10,100,1000 right a bit more