Activity
Lawrence Hall of Science

The Math Page: Skill in Algebra: Adding and Subtracting Signed Numbers

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains how to add and subtract signed numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who...
eBook
Math Planet

Math Planet: Pre Algebra: Adding and Subtracting Integers

For Students 6th - 8th Standards
Gain an understanding of how to add and subtract integers by viewing examples and a video lesson. [0:56]
Unknown Type
Math Warehouse

Math Warehouse: Add and Subtract Integers Worksheet [Pdf]

For Teachers 3rd - 8th Standards
Worksheet contains problems through which students can practice adding and subtracting integers. Real-world application of the skill is provided as well as a quick, diagnostic pre-test.
Activity
Interactive Mathematics

Interactive Mathematics: Add and Subtract Algebraic Expressions

For Students 3rd - 8th Standards
Information is given on how to add and subtract algebraic expressions. Also included is information on terms, coefficients, and like terms, as well as examples to demonstrate how to simplify.
Unknown Type
Khan Academy

Khan Academy: Negative Number Addition and Subtraction: Word Problems

For Students 7th Standards
Negative number addition and subtraction: word problems
Lesson Plan
Better Lesson

Better Lesson: Adding and Subtracting Integers With Counters

For Teachers 6th
What are opposites and what happens when you add them together? Students work with counters to model adding and subtracting integers.
Lesson Plan
Better Lesson

Better Lesson: Adding and Subtracting Integers on a Number Line

For Teachers 6th Standards
Sixth graders work with a number line and football to model adding and subtracting integers.
Whiteboard
ClassFlow

Class Flow: Adding and Subtracting Integers

For Teachers 9th - 10th
[Free Registration/Login Required] The objectives of this flipchart are to show students how to add and subtract with integers and decimals, find absolute value and evaluate expressions.
Unit Plan
Khan Academy

Khan Academy: Negative Number Addition and Subtraction: Word Problems

For Students 6th - 8th Standards
Practice solving word problems with negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Interactive
PBS

Pbs Learning Media: The Number Line: Rational Numbers and Football

For Students 6th - 8th Standards
Students add and subtract plays on a football field to practice working with negative and positive integers on the number line.
Unit Plan
PBS

Pbs: The Number Line: Rational Numbers and Football

For Students 6th - 8th
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....
Unit Plan
Khan Academy

Khan Academy: Interpret Negative Number Addition and Subtraction Expressions

For Students 6th - 8th Standards
Practice working through addition and subtraction problems using the number line. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Adding & Subtracting Negative Numbers

For Students 6th - 8th Standards
Practice solving addition and subtraction problems with integers (positive and negative numbers). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Ordering Negative Number Expressions

For Students 6th - 8th Standards
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...
Unit Plan
Khan Academy

Khan Academy: Interpreting Negative Number Statements

For Students 6th - 8th Standards
Practice matching addition and subtraction equations to real-world scenarios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Lesson Plan
Alabama Learning Exchange

Alex: Investigating Integers

For Teachers 3rd - 8th
This lesson plan provides students with an opportunity to demonstrate their understanding of real-world integers and create a PowerPoint presentation. It contains an assessment rubric as well as ideas for grouping students and managing...
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Sums of Integers on a Number Line

For Students 6th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt...
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Mr. Martini's Classroom

Mr. Martini's Classroom: Negative Number Addition Subtraction Quiz

For Students 3rd - 8th Standards
Learners can test their knowledge of adding and subtracting positive and negative numbers with this interactive quiz.
Unknown Type
Khan Academy

Khan Academy: Interpreting Negative Number Statements

For Students 7th Standards
Practice problems interpreting negative number statements.
Unit Plan
Khan Academy

Khan Academy: Algebra: Arithmetic With Polynomials and Rational Expressions

For Students 9th - 10th Standards
Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication i.e. one can add, subtract, and multiply polynomials.
Lesson Plan
Alabama Learning Exchange

Alex: Integers Are Rising and Falling Everywhere!

For Teachers 3rd - 8th
Students will expand from the idea of not only identifying signed numbers but to use them for numerical operations. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone...
Unit Plan
Khan Academy

Khan Academy: Substitution With Negative Numbers

For Students 6th - 8th Standards
Practice plugging in values to evaluate negative number addition and subtraction expressions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Interactive
Arcademics

Arcademics: Spider Match Adding Integers

For Students 5th - 8th
Spider Match is a multi-player game that allows students from anywhere in the world to compete against one another while practicing adding and subtracting integers!
Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Number Line With Negative Integers

For Students 3rd - 8th Standards
Students identify, compare, add, subtract, and multiply integers using a number line.

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