Lesson Plan
Curated OER

Understanding Whole Numbers

For Teachers 4th
In this understanding whole numbers worksheet, 4th graders use a computer program for instruction, then answer 16 problems about addition and subtraction.
Worksheet
Curated OER

Visual Sum and Difference Word Problems

For Students 1st - 2nd
Aside from awkward wording, this instructional activity has problems for learners to solve. They read each problem then use the provided pictures to solve. Note: The images and language are misleading on this instructional activity...
Lesson Plan
Curated OER

The Weight of Primates

For Teachers 2nd
Second graders practice their problem solving skills. In this addition and subtraction skills lesson, 2nd graders solve word problems that require them to find differences and sums. This lesson features the use of a video titled...
Interactive
Curated OER

Solving System of Equations by Addition or Subtraction

For Students 9th - 12th
In this online math activity, students solve systems of equations by using addition and subtraction . This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific...
Worksheet
Curated OER

Solving Simple Equations (E)

For Students 3rd - 4th
In this equations worksheet, students solve 21 problems in which simple equations are solved using addition or subtraction. Students find the value of the variable in each equation.
Worksheet
Curated OER

One-Digit Addition and Subtraction [F]

For Students 1st - 2nd
In this addition and subtractions worksheet, students solve a total of 49 problems; all problems use one-digit numbers. Answers are included on page 2.
Worksheet
Curated OER

Addition and Subtraction Word Problems

For Students 3rd - 4th
In this word problem worksheet, students solve 7 addition, 7 subtraction and 6 mixed word problems. Links to addition resources are given and examples are completed for students.
Worksheet
Curated OER

Adding and Subtracting Like Fractions (6)

For Students 5th
In this like fractions worksheet, 5th graders add or subtract the like fractions. Students enhance their fraction addition and subtraction skills by solving the 10 problems.
Worksheet
Curated OER

Adding and Subtracting Like Fractions (9)

For Students 5th
In this like fractions learning exercise, 5th graders enhance their fraction addition and subtraction skills by solving the 10 like fraction equations.
Worksheet
Curated OER

Adding and Subtracting Like Fraction

For Students 5th
In this like fractions worksheet, 5th graders enhance their fraction addition and subtraction skills by solving the 10 like fraction equations.
Lesson Plan
Virginia Department of Education

Algebra Tiles and Solving Equations

For Teachers 6th - 9th Standards
Young mathematicians solve linear equations by drawing models of algebra tiles using colored pencils. To finish, they solve the same equations algebraically and check their answers using a graphing calculator.
Lesson Plan
Curated OER

Pattern Puzzles

For Teachers 1st - 2nd
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
Lesson Plan
Curated OER

Alexander Used to Be Rich

For Teachers K - 2nd
Reading Alexander, Who Used to Be Rich Last Sunday, launches this lesson appropriate for children who recognize coins and have been introduced to coin values. Using addition and subtraction skills, the class tracks Alexander’s spending...
Lesson Plan
Curated OER

Understanding Proportions and Scale Drawings

For Teachers 7th - 8th
Proportions are ratios found using multiplication or division. Middle schoolers solve measurement problems, find a figure's missing dimension, and find the distance between two points. Resource features four lesson plans with detailed...
Worksheet
Curated OER

Use Addition to Help You Subtract

For Students 1st - 2nd
In this early childhood addition and subtraction worksheet, students solve 6 math story problems that help them see the relationship between adding and subtracting.
Worksheet
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Butterfly Fun

For Students 2nd - 3rd Standards
In this addition and subtraction worksheet, students solve a set of nine two-digit addition and subtraction problems. Once finished computing, they color spaces with even-numbered answers blue and odd-numbered answers purple, then color...
Lesson Plan
Curated OER

Butterfly Addition: Color by Numbers

For Teachers K - 1st
Children learning to add numbers up to 11 develop the strategy of using the larger number as the first addend and counting on from there to find a sum. They define addition and review the meaning of the plus (+) symbol. To practice, they...
PPT
Curated OER

Solving Linear Equations

For Teachers 8th - 10th
How do you solve linear equations? Learn how to solve simple linear equations by applying properties of equality in this instructional slideshow. The materials include step-by-step instructions and key concepts to support understanding.
Lesson Plan
Curated OER

Solving Basic Equations 2

For Teachers 8th - 9th
In this basic equation worksheet, students solve equations containing one variable. Students show their algebra steps as they solve division, multiplication, addition and subtraction problems containing positive and negative integers,...
Lesson Plan
Curated OER

Solving Fractional Equations

For Teachers 9th - 11th
In this fractional equation worksheet, students solve fractional equations containing addition and subtraction. This one-page worksheet contains eight problems, with answers.
Worksheet
Curated OER

Add and Subtract Decimal Ten Thousandths [C]

For Students 5th - 6th
Use this decimal addition and subtraction worksheet, learners solve a total of 32 problems using decimal tenths. Answers included on page 2.
Worksheet
Curated OER

Number Breakdown and Description Worksheet

For Students 1st - 2nd
How many ones and how many tens? Explore place value and addition. Learners begin by solving two missing addend problems followed by an addition and subtraction equation. Then, they read two sentences describing numbers by their place...
Worksheet
Curated OER

Dollars and Cents Word Problems

For Students 1st - 2nd
Explore money math with these addition and subtraction word problems. Learners solve three scenarios, each of which is illustrated for visual learners. They use knowledge of different types of US currency to determine how much money is...
Lesson Plan
Curated OER

Graphing Linear Equations and Inequalities

For Teachers 9th - 10th
Young scholars discuss methods to solve equations and inequalities with one variable. As a review, they write Addition and Subtraction properties of equality and Multiplication and Division properties of equality. Students graph points,...