Multiply real numbers

Multiply real numbers  The answer to a multiplication problem is called the product. For example, 24 is the product of 8 and 3. The rules for finding signs of products…

Subtract real numbers

Subtract real numbers    Recall that the answer to a subtraction problem is called the difference. Thus, the difference between 6 and 4 is 2. To see how subtraction should…

Additive Inverse

Additive Inverse For any real number a, the number 2a is the additive inverse of a. Change the sign of a number to get its additive inverse. The sum of…