Khan Academy
Khan Academy: Simplify Roots of Negative Numbers
Rewrite square roots of negative numbers as imaginary numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Subtracting Negative Numbers Intro
In this exercise, students practice subtracting negative numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Multiplying and Dividing Negative Numbers
In this exercise, students practice multiplying and dividing negative numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Order of Operations With Negative Numbers
Practice evaluating expressions using the order of operations. Numbers used in these problems may be negative. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Signed Numbers
This resource explains positive and negative numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems.
Khan Academy
Khan Academy: Equivalent Expressions With Negative Numbers
In this exercise, students practice factoring algebraic expressions using the distributive property. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Add and Subtract With Negatives
Find a quick, concise explanation of how to add and subtract with negatives. Step by step examples are included to help you understand how to find the sum or difference when negative numbers are involved.
Khan Academy
Khan Academy: Combining Like Terms With Negative Coefficients & Distribution
Practice combining like terms using the distributive property. These problems involve adding and subtracting negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Multiplying and Dividing Real Numbers
A good refresher on multiplication and division of real numbers. Covers finding the reciprocal and performing multiplication with positive and negative numbers and zero.
CK-12 Foundation
Ck 12: Algebra: Factorization of Quadratic Expressions
[Free Registration/Login may be required to access all resource tools.] Factor quadratic expressions in which the coefficients a, b, and/or c are negative.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Purple Math
Purplemath: Algebra Resources
Purplemath contains about 40 different lessons on various algebra topics. The lessons are divided into five different sections: preliminary topics, beginning algebra, intermediate algebra, advanced algebra, and word problems. The lessons...
Lesson Tutor
Lesson Tutor: A Beginning Look at Basic Algebra
Twelve lessons are provided as an introduction to basic algebra. Each covers the topic clearly, providing examples with explanations as well as practice problems and their solutions for the user. Topics highlighted here include: solving...
Khan Academy
Khan Academy: Negative Exponents
Practice computing numbers with negative exponents. Exponents may be fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly and to watch a video or get hints.
PBS
Pbs: Simplifying an Algebraic Expression
Simplify expressions with rational numbers using the distributive property of multiplication. This student-generated video focuses on using the distributive property to create equivalent expressions when multiplying by negative numbers...
Help Algebra
Help algebra.com: Addition & Subtraction of Real Numbers
Using a number line, the technique for adding and subtracting real numbers is demonstrated. Notation and calculator use is also touched on at the end of the lesson.
Purple Math
Purplemath: Practical Algebra Lessons
Pre-Algebra and algebra lessons, from negative numbers through Pre-Calculus. Grouped by level of study. Lessons are practical in nature, informal in tone, and contain many worked examples and warnings about problem areas and probable...
Sophia Learning
Sophia: Introduction to Roots and Radicals
Sophia: Introduction to Roots and Radicals uses teacher tutorials and online assessments to introduce and analyze concepts such as Even Roots, Negative Numbers, Odd Roots, Partial Root, Perferct Squares, Radicals Root, and Roots.
Math Warehouse
Math Warehouse: Complex and Imaginary Numbers
Features numerous exercises relating to complex and imaginary numbers. Includes video tutorials, calculators, worksheets and more.
Alabama Learning Exchange
Alex: Imaginary Numbers? What Do You Mean Imaginary?
Is it any wonder that students are suspicious? We lead, sometimes drag, them through Algebra I insisting they must follow the order of operations. We make them learn the "hard way" of doing an assignment one day only to show them the...
CK-12 Foundation
Ck 12: Analysis: Imaginary Numbers
[Free Registration/Login may be required to access all resource tools.] In this lesson students will identify imaginary and complex numbers, basic evaluation of imaginary numbers. Students examine guided notes, review guided practice,...
Interactive Mathematics
Interactive Mathematics: Basic Algebra
Interactive lessons are provided for many topics in algebra, including: laws of algebra, powers, roots and radicals, algebraic expressions, equations, and more. Use the links to navigate the tutorial and learn more focused concepts. The...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Multiply and Divide With Negatives
Find a quick, concise explanation of how to multiply and divide with negative numbers. An example is given and clearly explained for each.
CK-12 Foundation
Ck 12: Factor Quadratic Expressions With Negative Coefficients
[Free Registration/Login may be required to access all resource tools.] Factor quadratic expressions in which the coefficients a, b, and/or c are negative. Students can watch videos and follow along with notes. There is also practice...