#### Mathematics

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

```{{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.

## Subtraction

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

```{{subtract variable1 variable2}}
```

## Multiplication

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

```{{multiply variable1 variable2}}
```

## Division

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

```{{divide variable1 variable2}}
```

## Rounding

To round the resulting numbers to two decimal places, use component Assign a variable. 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.