Botmother has helpers for all basic mathematical operations. All math heplers are linear.

You need helper "**add"** to add two numbers together:

`{{add variable1 variable2}}`

As in block helpers, in linear ones you can specify not only variables, but also literal values:

`{{add 5 100}}`

105 will be sent in a message.

If you need to add several numbers or variables, you can use helper "**sum"**:

`{{sum var1 var2 var3}}`

It sums variable var1, variable var2 and variable var3.

We use helper "**subtract**" to subtract one number from another.

`{{subtract variable1 variable2}}`

We can use helper **"multiply"** to multiply one number by another:

`{{multiply variable1 variable2}}`

We can use helper **"divide"** to divide one number by another:

`{{divide variable1 variable2}}`

To round the resulting numbers to two decimal places, use component Record. Write value **"var"** in the final variable:

`{{toRub variable}}`

Where "**variable"** is the variable obtained after calculations.

If you need to create a variable with a fractional number after the dot, use helper:

`{{toFixedRub variable ','}}`

You can use the following helpers to round to an integer:

"**floor**" - always rounds down;

"**ceil**" - always rounds up;

"**round**" - rounds according to the rules of mathematics

"

"

Example:

```
{{variable 5.6}}
{{floor variable}}
```

As a result, the value of the variable will be rounded to 5.