Home
#### Algebra and Pre-Algebra Lessons

Algebra 1 | Pre-Algebra | Practice Tests | Algebra Readiness Test
#### Algebra E-Course and Homework Information

Algebra E-course Info | Log In to Algebra E-course | Homework Calculator
#### Formulas and Cheat Sheets

Formulas | Algebra Cheat Sheets

The Algebra Blog is my mini journal of Algebra Lessons. It lets you know when any new lessons appear on Algebra-class.com.

To subscribe to my Algebra Blog (no email required), right-click on the orange RSS button (bottom, left of the page) and then paste the url into your RSS reader.

Or click on the Google, My Yahoo, My MSN, Newsgator, or Bloglines button if you keep a personalized home page.

Thanks for staying in touch!

Multiplying integers and dividing integers share the same rules. When you multiply or divide integers that have the same sign, the answer is positive. When you multiply or divide integers that have different signs, the answer is negative.

Subtracting integers is easy when you use the keep change change rule. This rule allows you to rewrite the subtraction problem as an addition problem and then follow the addition rules.

When adding integers you want to look at the signs of the numbers that you are adding. If the signs are the same, then add the numbers and keep the sign. If the signs are different, subtract the numbers and take the sign of the number with the largest absolute value.

Comparing integers can be done by using a numberline. Numbers increase as you move to the right and decrease as you move to the left. I will demonstrate how to order integers by using a numberline and compare integers by using inequality symbols.

Improper fractions can be converted to mixed numbers. We will discover how to rewrite our improper fractions as mixed numbers.

Finding the GCF of a set of large numbers can be a daunting task. Lucky for us, we can use prime factorization or factor trees to find the gcf of a set of numbers.

An open sentence is a sentence that contains one or more variables that may be true or false depending on what values you substitute for the variables.

Practice using the distributive property with these challenging problems.

The distributive property is widely used in Algebra and is one of the most important properties. In this lesson, I will walk you step by step through how to properly use the distributive property.

Basic math formulas are used so often in real world problems, that it's important to learn how to utilize these formulas early in your Algebra studies.

In this lesson, we will practice simplifying algebraic expressions.

Continue reading "Practice Simplifying Algebraic Expressions"

When simplifying algebraic expressions, you will first need to understand how to combine like terms and the distributive property. We will walk through three examples to demonstrate exactly how to combine like terms.

Continue reading "Simplifying Algebraic Expressions and Combining Like Terms"

Translating algebra expressions is pretty easy once you have learned all of the key words that correleate with the four operations. In this lesson, you will have four charts outlining all of the key words that are necessary for translating algebraic expressions.

When you evaluate algebraic expressions you must substitute the given value for the variable. Then you evaluate the numerical expression by using the order of operations. We will walk through three examples of evaluating algebraic expressions.

Algebraic Variables are used to make math processes easier. When we use variables, we will substitute a number for the variable in order to evaluate the expression.

The associative property says that when adding or multiplying, we can change the grouping of numbers and it will not change their answer.

The commutative property is a property that allows you to rearrange the numbers when you add or multiply so that you can more easily compute the sum or product.

We often use PEMDAS to evaluate expressions. Even though P stands for parenthesis, this also includes any other grouping symbols, such as brackets, fraction bars, or radical symbols. We will walk through three examples that utilize these other grouping symbols within an expression.

Continue reading "Using PEMDAS to Evaluate Numerical Expressions"

Sign Up for Algebra Class E-courses

Click here to retrieve a lost password.

Custom Search

- FREE Solving Equations E-course
- Algebra Class E-course
- Algebra Class Products
- Algebra Practice Test
- Algebra Readiness Test
- Homework Answer Calculator
- Practice Worksheets

- Site Map
- Pre-algebra Refresher
- Solving Equations
- Graphing Equations
- Writing Equations
- Systems of Equations
- Inequalities
- Functions
- Exponents & Monomials
- Polynomials
- Quadratic Equations
- Algebra 1 Final Exam
- Square Roots and Radicals

- SAT Online Course
- Algebra Cheat Sheets - Very Popular!!
- Algebra Formulas
- Online Resources
- Contact Me
- I Want to Hear From You!
- Algebra Blog
- About Me

Copyright © 2009-2015 Karin Hutchinson ALL RIGHTS RESERVED

## Comments

We would love to hear what you have to say about this page!