You can use the following standard mathematical operators:

OperatorSyntaxPurpose
+value_1 + value_2Adds value_1 and value_2
-value_1 - value_2Subtracts value_2 from value_1
*value_1 * value_2Multiplies value_1 and value_2
/value_1 / value_2Divides value_1 by value_2