+

Addition

2 + 2

4

–

Subtraction

2 – 2

0

*

Multiplication

2 * 3

6

/

Division

12 / 4

3

**

Power

2**10

1024

%

Mod

12 % 9

3

&&

Boolean and

true && false

false

Boolean or | true || false | true

and

Boolean and

true and false

false

or

Boolean or

true or false

true

<

Less than

2

Greater than | 2 > 3 | false

!

Not

!true

false

{{ 2 + 2 }}

4

All of the operands are valid here.

{{ proposal_value.to_i * 10 }}

value*10

Check out the methods article to find out more about using .to_i.

{{ proposal_value1.to_i + proposal_value2.to_i}}

value1 + value2

Check out the methods&nbsp;article to find out more about using .to_i.