More Math Help
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# More Math Help

An additional resource page for Mrs. Francis's Aleks math students.
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## Matrix Operations

Matrix Operations - Adding, Subtracting, and Multiplying by a constant for matrices is discussed.
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## Matrix multiplication (part 1)

Matrix multiplication part 1.

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Demonstrates how to add and subtract matrices, explains why the addition or subtraction sometimes can't be done, and gives an example of how matrix addition is used in homework problems.
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## Number Types: What's a REAL number?

Discusses the different number types, such as integers and reals, and explains the relationships between the types. Covers sample problems.
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## Expressions With The Distributive Property

A brief video but it's very clearly expressed: how to use the distributive property to solve an equation and then to combine like terms for your answer.

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## The Distributive Property

Basic introduction to the distributive property, no variables, just numbers.

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## Solving Quadratic Equations by Factoring – Basic Examples

Patrick JMT offers a basic look at solving quadratic equations with one variable by factoring. Good tips for figuring out which signs you need to put where!

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## Solving Quadratic Equations: Solving by Factoring

Demonstrates how to solve quadratics using factoring.
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## Multiplying fractions

A Khan Academy video that offers a nice overview of multiplying fractions, including how to simplify/reduce your answer, how to multiply fractions with negative numbers, and LOTS of examples.

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## Vector Addition and Scalar Multiplication, Example 1

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Live tutorial on matrix addition and subtraction: you can check your work and examples.

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## Scalar and Matrix Multiplication

Explains how to multiply a matrix by a scalar and by another matrix. Demonstrates a useful technique for keeping track of matrix multiplication.
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## Basic Number Properties: Associative, Commutative, and Distributive

Discusses the Commutative, Associative, and Distributive Properties (or 'Laws'), including how to keep the names straight. Demonstrates how to recognize the properties in use.

With some worked examples also.

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## Distributive Property Example 1

Distributive property with variables! Lots of examples in this Khan Academy video.

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## More examples: Solving Quadratic Equations by Factoring

Patrick JMT gives another example of solving a quadratic equation by factoring, again with one variable.

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## Solving Quadratic Equations by Factoring

Khan Academy video on how to evaluate a quadratic equation with one variable. Review of factoring by grouping.

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## How to Subtract Fractions, How to "add" Negative Numbers Math Literacy Help

Adding/Subtracting fractions: how to break down a multi-step problem into logical and understandable bites! Good review of postive and negative numbers, common denominators, etc.

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## Adding fractions with different signs

Khan Academy video on how to add fractions with different signs. Also reviews the concepts of how to add fractions by converting them into improper fractions and finding common denominators.

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