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.
Better Lesson
Better Lesson: Adding and Subtracting Integers on a Number Line
Sixth graders work with a number line and football to model adding and subtracting integers.
Khan Academy
Khan Academy: Interpreting Negative Number Statements
Practice problems interpreting negative number statements.
CK-12 Foundation
Ck 12: Arithmetic: Absolute Value of Integers
[Free Registration/Login may be required to access all resource tools.] Identify the absolute value and opposites of given integers, recognizing zero as neither positive nor negative
PBS
Pbs: The Number Line: Rational Numbers and Football
In this interactive, students add and subtract plays on a football field to practice working with negative and positive integers on the number line. Each set of randomized drives consists of seven to nine plays and ends with a touchdown....
Khan Academy
Khan Academy: Negative Number Addition and Subtraction: Word Problems
Negative number addition and subtraction: word problems
Better Lesson
Better Lesson: Adding and Subtracting Integers With Counters
What are opposites and what happens when you add them together? Students work with counters to model adding and subtracting integers.
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.
Wikimedia
Wikipedia: Pythagorean Triple
This Wikipedia article explains a Pythagorean triple -- the triangle formed by three positive integers. Includes examples and hyperlinked terms.
Interactive Mathematics
Interactive Mathematics: Integers: Negative Numbers
Explore the world of negative numbers as you look at their relationship to positive numbers, integers, absolute value and more. Test your knowledge using he exercises and games provided.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Addition Subtraction Quiz
Learners can test their knowledge of adding and subtracting positive and negative numbers with this interactive quiz.
Learning Wave Communications
Learning Wave: Multiplying Integers
Using examples in football and golf, the rules of multiplying integers is demonstrated. Includes a link to an interactive example problem.
Calculator Soup
Calculator Soup: Adding and Subtracting Integers (Whole Numbers) Calculator
Use this calculator for adding and subtracting integers. Positive and negative whole numbers are integers. The calculator shows the work for the math and shows you when to change the sign for subtracting negative numbers.
Mr. Martini's Classroom
Mr. Martini's Classroom: Number Line With Negative Integers
Students identify, compare, add, subtract, and multiply integers using a number line.
Math Open Reference
Math Open Reference: Positive Numbers
Learn about positive numbers with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Mangahigh
Mangahigh: Pinata Fever: Add and Subtract With Negative Numbers
A fast paced game where students add and subtract positive and negative integers quickly so they can smash a pinata. Three levels of play, and instructional help is available as they progress.
Texas Instruments
Texas Instruments: Multiplication of Integers
Students use StudyCards(tm) to practice completing multiplication equations that include positive and negative integers.
Arcademics
Arcademics: Orbit Integers
Select the correct answer by adding integers to advance your spacecraft.
Mangahigh
Mangahigh: Number: Add and Subtract With Integers
Add and subtract positive and negative numbers.
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...
CK-12 Foundation
Ck 12: Arithmetic: Absolute Value of Integers
[Free Registration/Login may be required to access all resource tools.] Find the absolute value of positive and negative integers.
Alabama Learning Exchange
Alex: The Path to Positive
Using the story Less than Zero by Stuart Murphy, middle schoolers relate money matters to positive and negative numbers as a real-life correlation. Incorporated into this lesson, students play the path to positive game where they are...
PBS
Pbs: Harry Makes a Big Splash With Positive and Negative Numbers
In this Cyberchase video, Harry, his friend, and his cousin Harley form a swim relay team. They get timed in three different strokes to see who should swim which one in a relay. They look at the results and try to find the combination of...
PBS
Pbs Learning Media: The Number Line: Rational Numbers and Football
Students add and subtract plays on a football field to practice working with negative and positive integers on the number line.