Curated OER
Multiplication & Division
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...
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Subtraction as the Opposite of Addition
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.
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Well,Well!
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...
Helping with Math
#5: Addition & Subtraction Equations (1 of 2)
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...
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Addition and Subtraction as Inverse Operations
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...
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Subtracting Two- and Three-Digit Numbers
In this subtracting two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to fourteen subtraction equations.
Mathed Up!
Algebraic Fractions
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...
Helping with Math
#6: Addition and Subtraction Equations (2 of 2)
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...
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Adding Integers
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.
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Calculating Areas of Rectangles
In this geometry activity, students calculate the areas of rectangles. They use the formula for area of a rectangle.
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Addition and Subtraction
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.
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Addition and Subtraction
In this addition and subtraction activity, students fill in the correct number in 8 boxes without doing the addition and/or subtraction sums.
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Add and Subtract Decimal Ten Thousandths [C]
Use this decimal addition and subtraction activity, learners solve a total of 32 problems using decimal tenths. Answers included on page 2.
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Twenty-Five: A Math Card Game
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.
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Addition And Subtraction of Whole Numbers
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.
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End of the Year Math Terms
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.
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Basketball Calculating Percentage
Seventh graders calculate percentages, convert fractions to decimals, and decimals to fractions using information from a basketball game.
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Addition And Subtraction Of Real Numbers
In this addition and subtraction of real numbers worksheet, students problem solve and calculate the answers to forty two mathematical equations.
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Math is Everywhere! Post Test
In this math test learning exercise, students complete 10 multiple choice questions covering a wide variety of math concepts. An answer link is included.
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Place Value Calculations 10s and 100s
In this place values worksheet, students use their knowledge of place value numbers to help complete the twenty different addition equations.
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6: Adding with Negative Numbers
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.
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Percent Worksheet 15
In this percent worksheet, learners calculate the percentages of two and three digit numbers. Students complete 18 problems where they calculate percentages.
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What's on Sale?
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...
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Shipping on the Hudson
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...