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 phrase 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! Be sure to check out the solutions.

Math 20-1

Sequence and Series Litmus Test

https://mathpqjq.com/litmus-test-for-math-20-1-sequence-and-series/

Radical Expressions and Equations Litmus Test

https://mathpqjq.com/litmus-test-math-20-1-for-radical-expressions-and-equations/

Absolute Value and Reciprocal Functions Litmus Test

https://mathpqjq.com/absolute-value-and-reciprocal-functions-2/