Khan Academy
Khan Academy: Adding & Subtracting Negative Numbers
Practice solving addition and subtraction problems with integers (positive and negative numbers).
Khan Academy
Khan Academy: Adding & Subtracting Negative Fractions
Practice adding and subtracting positive and negative fractions.
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.
University of South Florida
Fcat: Human Number Line: Teacher Notes
This activity allows students to physically create a number line and work on adding and subtracting integers. This lesson can be adapted to include other concepts with real numbers.
AAA Math
Aaa Math: Evaluating Exponents of Negative Numbers
This site explains how to evaluate exponents of positive and negative numbers. The site provides games and exercises to practice the skill.
Khan Academy
Khan Academy: Absolute Value of Complex Numbers
Given a complex number in the form a+bi, find its absolute value. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. HSN.CN.B.4
Houghton Mifflin Harcourt
Houghton Mifflin Harcourt: Saxon Activity Center: Graphing Calculator Activity: Positive and Negative [Pdf]
Order of operations with positive and negative numbers is the focus of this graphing calculator lesson. Included are detailed examples, demonstrations of key functions, and practice problems. Acrobat Reader required.
ClassFlow
Class Flow: Positive & Negative Numbers
[Free Registration/Login Required] This flipchart contains manipulatives for creating addition and subtraction problems using positive and negative numbers. There is an example problem that teachers can use to help design their own...
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.
PBS
Pbs Learning Media: Logical Leaps: Rational Numbers on the Number Line
In this interactive, use logic to solve riddles involving a wallaby jumping contest.
Other
Cyber Sleuth Kids: Number Line Worksheets
Using a number line has just gotten a little easier for teachers and students in this site from CyberSleuth that contains an assortment of printable number line worksheets. Here you will find blank number lines, number lines with...
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...
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: Subtracting Negative Numbers
Practice subtracting positive and negative single-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Ordering Negative Numbers
In this exercise, students practice ordering negative numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Ordering Small Negative Numbers
Practice putting positive and negative numbers in order. For example, --2, 1, -5, and 3. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Practice: Interpreting Negative Numbers
A practice quiz on understanding what negative numbers mean. Includes hints.
PBS
Pbs: Addition of Positive and Negative Integers
Introducing a card game that your students can play in small groups to develop their addition skills. This video focuses on addition of positive and negative numbers and briefly touches on subtraction of integers.
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: Negative Symbol as Opposite
Recognize the negative sign as meaning the opposite of a number. Use the negative sign to find the opposites of numbers. In some items, we will find the opposite of an opposite. Students receive immediate feedback and have the...
Khan Academy
Khan Academy: Negative Number Addition and Subtraction: Word Problems
Negative number addition and subtraction: word problems
Math Open Reference
Math Open Reference: Negative Numbers
Learn about negative numbers with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Khan Academy
Khan Academy: Ordering Negative Numbers
Practice putting positive and negative numbers in order. For example, -28, 12, -51, and 43. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.