Computers are incredible at doing calculations. Now that we have declared variables, let’s use them with *arithmetic operators* to calculate things!

Here are some arithmetic operators:

`+`

addition`-`

subtraction`*`

multiplication`/`

division`%`

modulo (divides and gives the remainder)

For example:

int score = 0; // score is 0 score = 4 + 2; // it is now 6 score = 4 - 2; // it is now 2 score = 4 * 2; // it is now 8 score = 4 / 2; // and now 2 score = 5 % 2; // and now 1

**Note:** The order of operations can be specified using parentheses. For example, the use of parentheses in `score = 5 * (4 + 3)`

sets `score`

equal to `5 * 7`

rather than `20 + 3`

.

### Instructions

**1.**

In **math.cpp**, we have already declared and initialized a variable called `score`

for you.

Let’s change its value by giving it the value of 1234 multiplied by 99.

**2.**

But how would we know what that value is?

You can output the value by simply adding this code underneath:

std::cout << score << "\n";

Notice how when we want to output a variable, we don’t add double quotes around its name.

**3.**

Compile to output file **a.out** and execute your program using the terminal.