Greenebox Math Videos

How to find prime factors and list the prime factorization of numbers only Needed for finding prime factorization for square roots and factoring among other math skills.

How to simplify square roots (numbers only) using the perfect square method. elementary, middle school or higher grade level

Demonstration of the Multiplication Algorithm- 2 and 3 digits

Showing the first stage in the multiplication algorithm where one bottom digit is multiplied by several top digits.

How to do one-digit multiplication using repeated addition

How to do addition problems that require carrying (regrouping, replacement).

How to work Order of Operations problems - using PEMDAS method.

Part 2 of the subtraction with borrowing lecture. Showing how to borrow over zeros in different positions, when to borrow and when not to borrow.

Shows how to work subtraction problems 2 digits - 1 digit, where borrowing is required (Borrowing is also called replacement or regrouping)

How to do subtraction with one digit numbers where borrowing is not required. (Borrowing is also called replacement or regrouping)

How to do long division, 4 examples Elementary level using lists of multiples (no decimals)

How to calculate perfect cubes and cube roots

Concept of perfect squares and how they relate to finding square roots

How to work perfect square and square root problems

How to work Addition and Subtraction problems with fractions that have the same denominators. Part 1 of a 2 part lesson

How to find the least common multiple of 2 numbers. This is the first part of the process of finding the LCD, or least common denominator.

How to add and subtract fractions using common denominator method and lcm (least common multiple)

How to use the Rules for Adding and Subtracting Integers (positives and negatives)

How to work problems using the Sign Rules for Multiplication and Division.

How to do borrowing in subtraction problems using the European Algorithm.

Concept Lesson: Using a "candy bar" we show how to represent fractions of different sizes. Including terminology: improper, proper, mixed, common denominators.

How to remember the real number properties including Associative, Commutative,Identity and Distributive properties. Alternate names: addition property of zero, multiplication property of one

How to work coin problems. Value and Count word problems

Solving Absolute Value equations with a single "x" variable.

Demonstrates the concept of Absolute Values and shows how to work different types of problems.