- (subtract) (math) Purpose Subtracts two numbers or negates the value of a number. Subtraction syntax Number1 - Number2 Subtraction example Sub Main()         Print "10 minus 4 is:", 10 - 4 End Sub Negation syntax -Number Negation example Sub Main()         Print "negated 99 is:", -99         Print "negated -99 is:", -(-99) End Sub