When two variables are multiplied, the result is called a product. When they are divided, it is a quotient. Addition results in a sum and subtraction results in a difference.

The end result of a subtraction problem is called a difference. Other end results (except Pi) are typed below. Addition = Sum Subtraction = Difference Multiplication = Product Division = Quotient Pi = 3.14159265359 (π)

Firstly, you have to do a PH test on both of them. Secondly, record your're results Then do a simple subtraction of your two results and there is how to calculate how strong one acid is than another.

Addition is the inverse of Subtraction. Division is the inverse of Multiplication. and then visa-versa. :-) Addition is the inverse of Subtraction. Division is the inverse of Multiplication. and then visa-versa. :-) the Answer is subtraction