The four common math operators in Swift are:

**+**for addition.**–**for subtraction.*****for multiplication.**/**for division.

For example, let’s perform some basic maths with these operators and store the results into variables:

var sum = 5 + 10 var sub = 50 - 40 var prod = 5 * 4 * 3 var frac = 10.0 / 3.0

In this guide, you are going to learn how to do basic math in Swift. If you know what addition, subtraction, multiplication, and division mean, this chapter is going to be a walk in the park.

Also, before learning about the math operators, you are going to learn how to display values computed by your program.

**Let’s jump in!**

## The 4 Basic Math Operators

The very basic math operators taught in elementary school are:

**Addition**, for example, 5 + 5 = 10**Subtraction**, for example, 8 – 3 = 5**Multiplication**, for example, 5 x 5 = 25**Division**, for example, 16 / 8 = 2

Similar to how these operations are useful in real life, you are going to need them in your code.

Now, let’s move on to math operators in Swift.

## Math Operators in Swift

The basic math operators in Swift are:

**+**for addition**–**for subtraction*****for multiplication**/**for division

Let’s go through these operators in more detail.

### Addition (+)

To add two or more values together in Swift, use the addition operator (**+**).

For example:

let x = 10 let y = 20 let sum = x + y print(sum)

Output:

30

**Remember to write the above code to your Playground and run the playground file to see the result!** Also, feel free to tweak the names and values of the constants.

As another example, let’s chain the addition operators similar to how you commonly do in maths:

let sum = 1 + 2 + 3 + 4 print(sum)

Output:

10

Both of these examples show you how to use the addition operator to add values together in Swift.

Next, let’s talk about the opposite, that is, subtraction.

### Subtraction (-)

To subtract one value from another in Swift, use the subtraction operator (**–**).

For example, let’s create two constants and subtract one from the other:

let x = 10 let y = 20 let diff = x - y print(diff)

Output:

-10

As another example, let’s chain the subtraction operators similar to how you commonly do in maths:

let diff = 1 - 2 - 3 - 4 print(diff)

Output:

-8

Next, let’s move on to multiplication.

### Multiplication (*)

To multiple two or more values in Swift, use the multiplication operator (*****).

For example:

let x = 10 let y = 20 let prod = x * y print(prod)

Output:

200

As another example, let’s chain the multiplication operators similar to how you commonly do in maths:

let prod = 5 * 4 * 3 print(prod)

Output:

60

Last but not least, let’s talk about the inverse operation of multiplication, that is, division.

### Division (/)

To divide a value by another in Swift, use the division operator (**/**).

For example:

let x = 10.0 let y = 20.0 let frac = x / y print(frac)

Output:

0.5

You can also chain the division operators:

let frac = 5.0 / 10.0 / 2.0 print(frac)

Output:

0.25

This completes our guide on the basic math operators in Swift.

## Conclusion

In this guide, you learned what are math operators in Swift and how to use them.

To recap, there are four main math operators:

**+**for addition**–**for subtraction*****for multiplication**/**for division

You can use these operators to do basic maths between two or more values.