Cuemath
Cuemath: Real Numbers
A comprehensive guide for learning all about real numbers and their important properties with solved examples and practice questions.
Cuemath
Cuemath: Number Line
A comprehensive guide for learning all about number lines with definitions, uses of number lines, solved examples, and practice questions.
Math.com
Math.com: The Language of Algebra: Definitions
The resource investigates the algebra vocabulary. Detailed definitions, examples, and practice problems are included.
Wolfram Research
Wolfram Math World: Absolute Value
Defines the concept of absolute value in a variety of mathematical methods and difficulties. Includes special links for further investigation.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra: Operations on Real Numbers
A tutorial will guide you through the rules and steps for adding, subtracting, multiplying, and dividing real numbers, as well as evaluating numeric expressions and using order of operations. Contains step-by-step solutions to example...
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Adding Real Numbers
A good refresher of how to perform addition of real numbers. Covers how to add numbers of same sign and of the different sign, and how to find the additive inverse of a number. View several example problems and step-by-step solutions and...
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Subtracting Real Numbers
A good refresher on how to perform subtraction with real numbers. Covers subtracting numbers with the same and different signs and simplifying expressions that have subtraction. View sample problems and complete practice exercises.
Math Medics
S.o.s. Math: Absolute Value Inequalities
After explaining the geometric definition of absolute value, this lesson will guide you through several examples in solving inequalities that involve absolute value. Practice exercises and their solutions are also included.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Real Numbers
The tutorial investigates real numbers. Students learn about the concept through class notes, practice problems, and tables. Topics include interval notation and order of operations. Quizzes are used to check for comprehension.
Math Is Fun
Math Is Fun: Definition of Absolute Value
Get the definition for Absolute Value. Then, move the slider along the interactive number to see examples. Click on the link, "here's more" for more information.
Soft Schools
Soft Schools: Rational Numbers on the Number Line
Practice placing negative and positive numbers on a number line in this interactive self-correcting quiz.
J Coffman
Joseph Coffman's Lecture Notes: Properties of Numbers
The lesson examines properties of real numbers. Students learn about rational numbers, properties of real numbers, and irrational numbers. Examples and an assessment are included.
J Coffman
Joseph Coffman's Lecture Notes: Solving Absolute Value Equations
The lesson examines solving absolute value equations and inequalities. Students learn about extraneous solutions, conjunctions, and disjunctions. Definitions, formulas, examples, and a quiz are included.
Math Planet
Math Planet: Pre Algebra: Absolute Value
Gain an understanding of absolute value by viewing examples and a video lesson. [0:58]
McGraw Hill
Glencoe Mathematics: Online Study Tools: Integers and Absolute Value
This site gives a short interactive quiz which allows students to self-assess their understanding of integers and absolute value.
Other
Math Bugs Me: Add Subtract Integers
This website provides students tips on how to add integers using absolute value and by introducing them to a pattern.
Khan Academy
Khan Academy: Equivalent Expressions With Negative Numbers
Practice identifying equivalent expressions involving the addition and subtraction of negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Soft Schools
Soft Schools: Integers and Real Numbers Quiz
Students are expected to evaluate the sum, difference, product, quotient, and the absolute value of real numbers and integers. Also, they must know the concepts of positive and negative numbers.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Integers
Find a quick, concise explanation of integers. A helpful diagram is given and clearly explained that shows the relationship of integers to other number groups.
CK-12 Foundation
Ck 12: Algebra: Absolute Value
[Free Registration/Login may be required to access all resource tools.] This concept introduces absolute value. Students can watch a video tutorial, explore guided notes and then attempt practice problems.
Khan Academy
Khan Academy: Negative Numbers, Variables, Number Line
Practice comparing positive and negative numbers by thinking about their positions on the number line. Numbers to the right are greater than numbers to the left. Students receive immediate feedback and have the opportunity to try...
Khan Academy
Khan Academy: Ordering Rational Numbers
Practice putting positive and negative fractions and decimals in order. For example, -12/4, -2.5, and 3.25. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Compare and Order Absolute Values
Write an inequality to compare absolute values. Order numbers written in absolute value form from least to greatest. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Ordering Negative Number Expressions
Practice solving challenging negative number addition and subtraction problems. Number line models, variables, and absolute value come together to push your knowledge of negative numbers even deeper (maybe even below zero!). Students...