Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

By the way your previous answer " 2 x 13 = 26 with 9 left over" is correct.

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

dose the 2 go in the answer am i right?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Yes. That is correct. Right. I am going to give you an image of where we are now up to.

I have left out the arrows to save time.

Can you see the next step ?

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

next step is to bring down the 4 so you have 94 is that right?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Yes that is correct. Now how many times does 13 go into 94 ?

This is tricky because we don't know the 13 times table.

So you could start from 0 and add 13 successively. (0, 13, 26, 39, .... )

Or. Guess the number and multiply by 13 to check whether it is the right one.

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

13x94=7with 3 left over am i right?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

You have got the right idea with that, but it is a bit muddled.

13 x 7 = 91 then 94 - 91 = 3

I am going to update you with a new snapshot.....

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Right what do we do now ?

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

bring down the 9 so you get 39 am i right?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Yes that is correct.

No we have to work out how many times 13 goes into 39. Something interesting happens here.

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

13x39=3 am i right?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Yes now what number must be put at the top where the answer is ?

What is the remainder ?

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

3 goes in the answer am i right?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

By the way I have prepared another image of the final state of the division.

Before I post it though. Can you see what the answer to the original question is ?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

In answer to the previous post. Yes 3 does go up the top in the answer bit.

The remainder is zero. Notice that if this happens and there are no more numbers to put down then the

calculation is finished and you can interpret the result.

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

no i can not see what the answer is?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Okay I am going to post the final image for this division.....

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

ok so the answer is 0 then is that right?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Well the answer to the subtraction at the end is zero and this tells us that the remainder is zero.

This combined with the fact that we have used up all of the digits tells us that the calculation should be finished.

What is the answer to the original question? What is 16549 divided by 13 ?

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

the answer is o1273 am i right? could i have some more to practes for torrow please?

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Yes, but we usually would not include the 0 at the start of that number so really the answer is 1273.

I will make up a few examples in a minute and post them.

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Okay some examples for you to have a go at:

7479 divided by 9 ?

3227 divided by 7 ?

7860 divided by 15 ?

5508 divided by 17 ?

They should all result in a nice round number as an answer. (If not then one of us has made a mistake.)

In practice not very many divisions work out with a whole number as an answer we may have to

discuss concepts to do with remainders, fractions and decimals at the end of the answer.

However let's leave that for now and concentrate on the long division technique.

Offline

**mandy jane****Member**- Registered: 2010-09-23
- Posts: 988

Ok I will have a go at these for tomorrow and we can carry on with long division as well see you at 3.30pm tomorrow ok

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Okay see you tomorrow.

Offline

**SteveB****Member**- Registered: 2013-03-07
- Posts: 547

Hello

Offline