Curated OER
Three Circles II
Fourth graders practice a variety of strategies when investigating what happens when they put various numbers into circles of a configuration: they express a fraction as a decimal, write and solve problems involving decimal...
Curated OER
Commutative, Associative, and Distributive Properties
Learners explore the concept of the associative, commutative, and distributive properties. In the associative, commutative, and distributive properties lesson plan, students discuss real world examples of each property. Learners...
Curated OER
The Cuisenaire Four-Pan Algebra Balance: Limitations and Suggestions
Students illustrate the concept of balancing equations using a Four-Pan Algebra Balance. In this balancing lesson, students visualize why it is necessary to add or subtract the same quantity on both sides of an equation when solving...
Curated OER
Math & Social Science
Students are given data and are to calculate averages and yearly totals of how many cars travel the Tacoma Narrows Bridge. They also make a graph of the data.
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.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Subtraction Flashcards
Students solve positive and negative number subtraction problems on these interactive flashcards. The problem changes color when the correct number is typed.
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...
Khan Academy
Khan Academy: Interpret Negative Number Addition and Subtraction Expressions
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.
Khan Academy
Khan Academy: Negative Number Addition and Subtraction: Word Problems
Negative number addition and subtraction: word problems
Khan Academy
Khan Academy: Interpreting Negative Number Statements
Practice problems interpreting negative number statements.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Subtraction Cards, Fill in the Blank
Students type the correct positive or negative number to complete the subtraction problems on these interactive flashcards. The problem changes color when the correct number is typed.
McGraw Hill
Glencoe: Self Check Quizzes 1 Subtracting Integers
Use Glencoe's randomly generated self-checking quiz to test your knowledge of subtracting integers. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It"...
McGraw Hill
Glencoe: Self Check Quizzes 2: Subtracting Integers
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of subtracting integers. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...
McGraw Hill
Glencoe: Self Check Quizzes 3 Subtracting Integers
Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of subtracting integers. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...
Khan Academy
Khan Academy: Interpreting Negative Number Statements
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.
Khan Academy
Khan Academy: Negative Number Addition and Subtraction: Word Problems
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.
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: Ordering Negative Number Expressions
In this exercise, students practice ordering expressions. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
OER Commons
Oer Commons: The Effects of Positive & Negative Numbers
Seventh graders explore what happens to a hot air balloon when they add or remove units of weight or heat. This activity is an informal exploration of addition and subtraction with positive and negative integers.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Integer Subtraction
Get independent practice subtracting integers. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
NumberNut
Number Nut: Subtraction: Two Digit Subtraction With Negatives
A quiz for practicing subtraction of two-digit numbers where some of the answers may be negative numbers.
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: Substitution With Negative Numbers
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.
AAA Math
Aaa Math: Subtracting Negative and Positive Integers
Read through the given information on subtracting negative and positive integers, and try to solve some integer problems.