# Arithmetic functions maths

Arithmetic functions are used to perform basic calculations on values.

## Add add

The `+`

(addition) function is used to find the sum of two argument expressions.

**Syntax**

```
{%= double + double %}
```

**Example**

The following operation sums the price of two different products.

```
{%= product1.price + product2.price %}
```

## Multiply multiply

The `*`

(multiplication) function is used to find the product of two argument expressions.

**Syntax**

```
{%= double * double %}
```

**Example**

The following operation finds the product of the inventory and the price of a product to find the gross value of the product.

```
{%= product.inventory * product.price %}
```

## Subtract substract

The `-`

(subtraction) function is used to find the difference of two argument expressions.

**Syntax**

```
{%= double - double %}
```

**Example**

The following operation finds the difference in price between two different products.

```
{%= product1.price - product2.price %}
```

## Divide divide

The `/`

(division) function is used to find the quotient of two argument expressions.

**Syntax**

```
{%= double / double %}
```

**Example**

The following operation finds the quotient between the total products sold and total money earned to see the average cost per item.

```
{%= totalProduct.price / totalProduct.sold %}
```

## Remainder remainder

The `%`

(modulo/remainder) function is used to find the remainder after dividing the two argument expressions.

**Syntax**

```
{%= double % double %}
```

**Example**

The following operation checks if the personâ€™s age is divisible by five.

```
{%= person.age % 5 = 0 %}
```