Unit Plan
Curated OER

Multiplication & Division

For Teachers 4th - 5th Standards
Helpful for building a multiplication unit that focuses on different strategies. With explanations about repeated addition and subtraction as foundations for multiplication, scaling, summaries of progression, and basic multiplication and...
Worksheet
Curated OER

Subtraction as the Opposite of Addition

For Students 4th - 6th
For this basic math operation worksheet, students learn that subtraction is the inverse of addition. They then solve 8 subtraction problems and use addition to check the answers. Answers are available on the second page.
Lesson Plan
Curated OER

Well,Well!

For Teachers 2nd
Second graders explore and solve a math word problem that involves a series of single digit additions and subtractions. They brainstorm ways to solve the problem, independently solve the problem using drawings, and discuss the various...
Worksheet
Helping with Math

#5: Addition & Subtraction Equations (1 of 2)

For Students 6th - 8th Standards
Single-step addition or subtraction operations are applied in order to solve these 12 simple equations. An answer key is available, not so much for you, but perhaps to be used by learners as a self-correction tool. Note that the...
Worksheet
Curated OER

Addition and Subtraction as Inverse Operations

For Students 3rd - 4th
In this addition and subtraction worksheet, students work with the inverse operations. They fill in the boxes in 8 examples using mental math. They look at the addition problems and fill in the blanks in the subtraction problem and vice...
Lesson Plan
Curated OER

Subtracting Two- and Three-Digit Numbers

For Teachers 5th - 7th
In this subtracting two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to fourteen subtraction equations.
Assessment
Mathed Up!

Algebraic Fractions

For Students 9th - 12th
Learn ways to simplify algebraic fractions with a video that reviews how to simplify rational expressions by canceling common factors and how to add and subtract simple rational expressions. A worksheet tests pupils' understanding...
Worksheet
Helping with Math

#6: Addition and Subtraction Equations (2 of 2)

For Students 7th - 8th Standards
This printable contains 12 basic equations to be solved. The first one is worked out as an example, and the answers for all can be found by clicking on a "Show Answers" box found on the website. The publisher has identified this as...
Interactive
Curated OER

Adding Integers

For Students 5th - 6th
In this integer worksheet, students solve 12 problems, adding integers. Answers and hints are available on-line; a reference web site for additional resources is given.
Worksheet
Curated OER

Calculating Areas of Rectangles

For Students 5th - 10th
In this geometry activity, students calculate the areas of rectangles. They use the formula for area of a rectangle.
Worksheet
Curated OER

Addition and Subtraction

For Students 3rd - 4th
In this addition and subtraction instructional activity, students figure out the correct number to place in 8 boxes without doing the addition and subtraction sums.
Worksheet
Curated OER

Addition and Subtraction

For Students 3rd - 4th
In this addition and subtraction activity, students fill in the correct number in 8 boxes without doing the addition and/or subtraction sums.
Worksheet
Curated OER

Add and Subtract Decimal Ten Thousandths [C]

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

Twenty-Five: A Math Card Game

For Teachers 3rd - 8th
Students calculate addition and subtraction problems using mental math. They add and subtract cards numbered one through nine until a player gets a sum of twenty-five.
Lesson Plan
Curated OER

Addition And Subtraction of Whole Numbers

For Teachers 6th - 8th
In this math worksheet, students solve the problems using addition and subtraction with whole numbers. They apply the calculations by lining up the place values.
Worksheet
Curated OER

End of the Year Math Terms

For Students 4th
In this end of the year math test learning exercise, 4th graders complete problems including addition, division, measurement, decimals, and more. Students complete 22 problems. 
Lesson Plan
Curated OER

Basketball Calculating Percentage

For Teachers 7th
Seventh graders calculate percentages, convert fractions to decimals, and decimals to fractions using information from a basketball game.
Lesson Plan
Curated OER

Addition And Subtraction Of Real Numbers

For Teachers 6th - 9th
In this addition and subtraction of real numbers worksheet, students problem solve and calculate the answers to forty two mathematical equations.
Interactive
Curated OER

Math is Everywhere! Post Test

For Students 4th - 6th
In this math test learning exercise, students complete 10 multiple choice questions covering a wide variety of math concepts. An answer link is included.
Worksheet
Curated OER

Place Value Calculations 10s and 100s

For Students 2nd - 3rd
In this place values worksheet, students use their knowledge of place value numbers to help complete the twenty different addition equations.
Worksheet
Curated OER

6: Adding with Negative Numbers

For Students 6th - 8th
In this adding negative numbers worksheet, students solve three multi-part short answer problems. Students add negative integers. Students evaluate addition and subtraction expressions for given values.
Worksheet
Curated OER

Percent Worksheet 15

For Students 4th - 6th
In this percent worksheet, learners calculate the percentages of two and three digit numbers. Students complete 18 problems where they calculate percentages.
Lesson Plan
Curated OER

What's on Sale?

For Teachers 3rd - 5th
Students explore sale items.  In this money and percent math lesson, students work in groups to locate food ads in the newspaper.  Students identify sales and calculate final prices using percentage discounts.  Students...
Lesson Plan
Curated OER

Shipping on the Hudson

For Teachers 3rd - 5th
Students track movements of ships, tugboats, and barges on the Hudson River estuary in order to practice addition and subtraction skills. They solve word problems by reading and interpreting data from a table. They calculate distances...