$add opperator adds numbers


$sub opperator subtracts numbers


$mod opperator finds the remainder of 2 numbers


$Inc opperator increase numbers based on a set value


$dec opperator decreases numbers based on a set value


some math examples:Addition Example : 5 + 5
10
Subtraction Example : 5 - 5
1
Modulus Example : Remainder of 1489/37
9
Incremenet Example : 20 incremented by 1
20
Decrement Example : 50 decremented by 1
50