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Interactive3:01
Scholastic

Study Jams! Relate Addition & Subtraction

For Students 1st - 4th Standards
Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...
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PPT
Curated OER

Inverse

For Teachers 2nd - 4th
Your class can learn all about inverse operations. They will review what inverse operations are, see examples, learn how to use inverse operation to check an answer, write addition and subtraction equations in the inverse, and use the...
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Interactive
Scholastic

Study Jams! Addition & Subtraction Equations

For Students 5th - 7th Standards
Zoe is decorating a cake for her grandpa's birthday and needs to know how many more candles to add. Follow along as she explains how to set up and solve algebraic equations in this step-by-step presentation. Equations with negative...
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Lesson Plan
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Curated OER

Operating on Matrices

For Teachers 9th - 12th Standards
Learners investigate matrices by exploring addition, subtraction and multiplication of matrices.  Students find the determinant and inverse of a matrix.  The activity includes a set of practice problems
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Worksheet
K12 Reader

Sum Difference

For Students 2nd - 3rd Standards
If you need a way to address math and reading in one lesson, look no further than a passage about inverse operations, complete with reading comprehension questions. Kids focus on context clues to determine the meanings of unfamiliar words.
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Interactive
CK-12 Foundation

Mental Math for Addition and Subtraction Equations: Marble Bag Collector

For Students 6th - 7th Standards
Don't lose your marbles as your learn about addition and subtraction equations. Pupils investigate the relationship between addition and subtraction by using an interactive. They drag different color marbles into a box and identify the...
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Worksheet
Curated OER

Matrix Equations Not Requiring Inverses

For Students 9th - 11th
In this matrix equations worksheet, students solve matrix equations involving addition, subtraction, and multiplication.  This four-page worksheet contains 20 problems.  Answers are provided on the last two pages.
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Worksheet
1
1
Curated OER

Inverse Relationships Addition/Subtraction (A)

For Students 1st - 4th
In this inverse relationships learning exercise, students problem solve and calculate the answers to sixteen mathematical equations involving addition and subtraction.
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Lesson Plan
Curated OER

Inverse Relationship Between Addition and Subtraction

For Teachers 1st - 2nd
Elementary schoolers review their knowledge of addition and subtraction through studying fact families. They use cubes to help them add or subtract. Students answer the teachers question with addition and subtraction fact answers.
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Lesson Plan
Curated OER

Simplifying Expressions (Addition and Subtraction)

For Teachers 7th
Seventh graders simplify algebraic expressions using addition and subtraction to combine like items and solve for the variable. They work with inverse operations to solve equations with guided practice. Everyone completes various...
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Lesson Plan
Curated OER

Integer Addition

For Teachers 7th
Seventh graders explore the concept of integer addition. In this integer addition lesson, 7th graders tell stories involving addition and subtraction. Students walk on a number line given directions such as add 3 or add -2. Students play...
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Worksheet
1
1
Curated OER

Inverse Relationships Add/Sub (D)

For Students 3rd
In this inverse relationships worksheet, 3rd graders use the addition and subtraction sentences to find the missing number that solve the addition and subtraction inverse relationships.
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Handout
Charleston School District

Solving with Inverse Operations

For Students 8th Standards
What does order of operations have to do with solving equations? A video explains solving two-step equations using a do/undo chart. Learners recognize the operations within an equation and use inverse operations to undo those operations. 
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Lesson Plan
EngageNY

One-Step Equations—Addition and Subtraction

For Teachers 6th Standards
Just one step is all you need to find success in solving equations. The 27th installment in a series of 36 teaches how to solve one-step equations involving addition and subtraction. Tape diagrams help future mathematicians in this task.
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Worksheet
Curated OER

Inverse Relationships

For Students 2nd
For this math operation worksheet, 2nd graders fill in 60 boxes in this addition and subtraction inverse operation worksheet. They find combinations that are based on the number 18.
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Worksheet
Curated OER

Revise Understanding Subtraction

For Students 2nd - 3rd
In this subtraction worksheet, students find the difference and check by adding. In this problem solving worksheet, students solve and check seven problems.
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Worksheet
1
1
Curated OER

Inverse Relationships (4)

For Students 2nd - 3rd
In this addition and subtraction fact families worksheet, students fill in the blanks with the inverse relationships. Students solve 60 problems.
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Worksheet
1
1
Curated OER

Inverse Relationships (10)

For Students 2nd - 3rd
In this addition and subtraction fact families worksheet, students identify the missing numbers in the inverse relationships. Students solve 60 problems.
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Worksheet
1
1
Curated OER

Inverse Relationships (6)

For Students 2nd - 3rd
In this addition and subtraction fact families worksheet, students fill in the blanks for each missing factor to complete the inverse relationships. Students solve 60 problems.
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Worksheet
1
1
Curated OER

Inverse Relationships (C)

For Students 1st - 2nd
In this addition and subtraction inverse operations learning exercise, students fill in the blanks in 30 addition and subtraction sentences with the appropriate numbers based on inverse relationships
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Worksheet
1
1
Curated OER

Inverse Relationships Add/Sub (E)

For Students 1st - 2nd
In this addition and subtraction inverse operations worksheet, students fill in the blanks in 16 addition and subtraction sentences with the appropriate numbers based on inverse relationships.
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Worksheet
1
1
Curated OER

Inverse Relationships Add/Sub (D)

For Students 2nd - 3rd
In this inverse relationships worksheet, students use the given numbers to solve the addition and subtraction sentences to solve the 16 inverse relationship problems.
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Worksheet
1
1
Curated OER

Inverse Relationships (D)

For Students 2nd - 3rd
In this inverse relationships instructional activity, students use the given numbers in each addition or subtraction sentence to solve the 30 problems.
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Worksheet
1
1
Curated OER

Inverse Relationships (11)

For Students 1st - 4th
In this inverse relationships worksheet, students problem solve and calculate the answers to thirty inverse equations involving addition and subtraction.