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# Wich is a compact division the Quizz No. 5?

I intented 3 forms of the division learninf from the video and my result is wrong ... Hi Erick!

Say we had the value 3 assigned to an integer variable called a. Now we want to add 4 on to a. We could do it like this:

```int a = 3;
a = a + 4;  // This is one way to add 4 to the integer variable a.
```

This is fine, however we can do it slightly differently and make our code more compact.

```int a = 3;
a += 4; // This is the compact way of doing it.
```

In C/C++/Objective-C, the basic mathematical operators have their own compact notation, for example.

```a += 3;  // This is the compact form of a = a + 3
a -= 3;  // This is the compact form of a = a - 3
a *= 3;  // This is the compact form of a = a * 3
```

and finally (although I'm sure you have guessed it already!),

```a /= 3; // This is the compact form of a = a/3  (So the compact form of division)
```

Basically, it's a way of saying "Hey, divide a by 3, then make sure that a is set to this new value".

I hope this helps!

Andy.

Hi Andy

I'm newbie in the concepts of C ... and TreeHouse is the best solution for learning in this area, Thanks you very much for the response.and the help.

Erick