Exponent

Q: Is x raised to zero equal to 1 for all values of x?

A: No, because there is no value when zero is raised to itself.

A simple Math Problem

Q: A coke bottle is twenty more than its cap. 
Is the total of both the bottle and its cap is 21, how much is the bottle?

Student's Answer: 20

Correct Answer: 20.5

Simple Equation

Q: Solve the equation: 2(3x+5) = 22


Student's Answer:      6x + 5 = 22      Step 1
                                   6x= 17             Step 2
                                    x = 17/6          Step 3


Correction: In Step 1, the solution is already wrong, we have to remember of the Distributive Property. In this case 2 should be distributed to both 3x and 5. So the correct answer for x should be 2.