A litmus test is used in Chemistry to determine if a solution is acidic or basic using litmus or litmus paper. Litmus testing is so common and well known that the phase is also used to mean something that is a strong indication of future success or failure.

From a math perspective, I have provided you with a set of focused review questions that can be used as a litmus test. Good luck! 

So you have completed this Math 30-1 unit and would like to check your understanding. 

Try the following questions and then be sure to check the detailed solutions that follow.