Math

Pre-Algebra Practice Questions: Comparing Fraction...

Cross-multiplication is a handy tool for finding the common denominator for two fractions,...

Finite Math For Dummies Cheat Sheet

When performing the many types of computations found in Finite Math topics, it’s helpful...

Factorial

The factorial operation says to multiply the designated number by every positive integer s...

Matrix Notation

Matrices are rectangular arrangements of elements. The dimension of a matrix is given with...

Binomial Distributions

A common situation when doing probability problems is having to determine the patterns of...

Pascal’s Triangle

When performing computations in problems involving probability and statistics, it’s ofte...

How to Calculate Percentiles in Statistics

If all you are interested in is where you stand compared to the rest of the herd, you need...

Pre-Algebra Practice Questions: Solving Simple Alg...

When dealing with simple algebraic expressions, you don’t always need algebra to sol...

Pre-Algebra Practice Questions: Isolating x in an

You can solve algebraic equations by isolating x—that is, by getting x alone on one side...

Pre-Algebra Practice Questions: Rearranging Equati...

A quick method for solving algebra problems is to re-arrange the equation by placing all x...