Rational and Irrational Numbers

How can you tell which is which?

Rational and Irrational numbers

Please watch these videos to get a better understanding about the difference between rational and irrational numbers.
What is the Difference Between Rational and Irrational Numbers , Intermediate Algebra , Lesson 12

Square Roots and Perfect Squares

Students are required to remember the "perfect" square roots. If remembering is not their best suite, there is an option of solving them using a quick two by two multiplication math trick.
Perfect Squares and their roots - n15

Two by Two Multiplication

Fast Math Tricks - How to multiply 2 digit numbers up to 100 - the fast way!