complex numbers 81 videos

Probability
PreAlgebra Introductory Statistics
Probability is number of successes out of number of possible outcomes

The Discriminant
Algebra Quadratic Equations and Functions
How to calculate and interpret the discriminant of a quadratic equation.
discriminant x intercepts number of solutions 
Definitions and Applications of Absolute Value
Algebra Absolute Value
What is absolute value?
absolute value number line distance 
Adding and Subtracting
PreAlgebra Whole Numbers
Using the number line to represent adding and subtracting whole numbers

Significant Figures
Chemistry Introduction to Chemistry
How to find the correct number of figures to show when writing numbers.
significant figures digits rounding 
Significant Figures
Physics Introduction to Physics
How to find the correct number of figures to show when writing numbers.
significant figures digits rounding 
Cube Roots
Algebra Radical Expressions and Equations
How to find the cube root of a number.
cube root 

Permutations
Precalculus Topics in Discrete Math
How to find the number of permutations of a set.
different arrangement permutation factorial permute 
Combinations
Precalculus Topics in Discrete Math
How to find the number of combinations of a set.
chose choosing combination order doesn't matter pens 
Permutations
Algebra 2 Combinatorics
How to find the number of permutations of a set.
different arrangement permutation factorial permute 
Combinations
Algebra 2 Combinatorics
How to find the number of combinations of a set.
chose choosing combination order doesn't matter pens 
Complicated Indefinite Integrals
Calculus Antiderivatives and Differential Equations
How to solve complex indefinite integral using the properties of indefinite integrals.
indefinite integral antiderivative antidifferentiation differentiation 
Pronoun Antecedent Agreement
Grammar Sentence Basics
The rules for pronoun and antecedent agreement.
pronoun antecedent agreement person number gender 
Mean
Algebra Introduction to Statistics
How to calculate the mean, or average, of a list of numbers.
mean measure of center average 
Addition and Subtraction
PreAlgebra Integers
Understanding the set of integers in contrast to the whole or natural numbers

Multiplication and Division
PreAlgebra Integers
Learn how to multiply and divide positive and negative numbers.

Divisibility
PreAlgebra Prime Numbers
Shortcuts to determine whether a number is a factor of another

Prime Factorization
PreAlgebra Prime Numbers
Identifying prime numbers and finding prime factorizations