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!