The right hand side let's see, what is 4,000 I'm going to do some long division here.

Division

21mn is clearly divisble by 7mn and it's clearly divisible by 3mn, so it's got the mn there it's divisible by 3 it's divisible by 7.

The long bullet points are bad.

No, they're not. The long bullet points are bad.

3 is divisible by 3, 24 is divisible by 3 and 48 is divisible by 3.

Quotient

Modulus

12 is divisible by 3, so 3 will go into it.

So it's divisible by three natural numbers

They're both divisible by 5, they're both divisible by r.

Extensive background information should be eliminated altogether.

This is only divisible by r, that's only divisible by s, that's divisible by neither.

If we're divisible by n 4 we are divisible by n

57, It's not divisible by 2, but it is divisible by 3.

Multiplication

Mod

Modulo

Divide.

long division.

20 is definitely divisible by 4, so 120 will be divisible by 4.

Well immediately, both factors are divisible by 3 and both terms are divisible by y.

We're divisible by 7m 2n, definitely divisible by 3mn 4.

5 is not divisible by 2, so 2 will not go into 75.

You just add up the digits and if that is divisible by 3, then the number's divisible by 3.

200 is divisible by 8, and then 80 is divisible by 8 as well.

Initial cost Estimated Savings

I'm going to be dividing by sixty.

And you divide by n.

This is going to be I don't want to make any careless mistakes, so let me just divide it again.

So how many times?

So as long as we're divisible by m 2 then we're also going to be divisible by m

It has to be divisible by n, and it also has to be divisible by n 4.

7 is not divisible by 3, so 25 will not be divisible by 3.

When you look at them, well these first two are divisible by 4, these last 2 are divisible by 3, but not all of them are divisible any one number.

Because you could see 10 goes into the 20, 10 goes into 10.

And, let's see, a u goes into both of these, and a v goes into both of these.

Well, actually, they're both divisible by 4, so maybe you don't realize that they're also both divisible by 8.

You need two numbers to divide

Now we're cool with the significant figures. Let's do another situation with division!

So we're going to divide by 4.

We're distributing the division.

So it's going to go into it 3x times.

So it's going to go into it 3x times, just like that.

25 does go into 103.