Addition, Subtraction, Multiplication, Division – DAX Guide

The addition operator + sums two numbers.
https://dax.guide/op/addition/

The subtraction operator – subtracts the second argument from the first one.
https://dax.guide/op/subtraction/

The multiplication operator * multiply two numbers.
https://dax.guide/op/multiplication/

The division operator / divides the numerator by the denominator, generating an error in case of a division by zero.
https://dax.guide/op/division/