Curated OER
A McTrip Back In Time
Students pretend they are time-travellers and travel back to 1954 to a McDonald's Restaurant to see how prices have changed. They need to add and subtract money with regrouping.
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Subtraction of Mixed Numbers
Students subtract mixed numbers that require regrouping and have a difference less than fifty.
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Fractions
Fourth graders explore fractions. They use Skittles and M&M's to practice adding and subtracting fractions. Students review the numerator and the denominator of fractions. They count the number of each color of Skittles and M&M's...
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Magic Tricks with Numbers
In this magic tricks with numbers worksheet, students learn three tricks involving addition, subtraction, multiplication and division of simple numbers as a magic trick.
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2 digit subtraction
Second graders subtract numbers 0 through 10 from 2 digit numbers using different subtraction methods. In this subtraction lesson plan, 2nd graders practice crossing out numbers in a number line, using a 10, and using their fingers to...
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Finding Discount and Sale Price
Seventh graders solve real-life problems involving sales tax, discount, and simple interest. They find the amount of discount. In groups, 7th graders examine a sales advertisement. Given a budget, they choose purchases, and figure the...
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Rollie-Pollie - - Ceramic Art
Young scholars are introduced to a variety of sculpting techniques: rolling, pinching and scoring. They practice utilizing additive and subtractive processes in making simple sculptural forms to depict bugs. Each student also interprets...
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Adding in Parts
Third graders are able to split whole numbers into parts. They make numbers up to a tidy number. Students add and subtract tenths to make a decimals number into a whole number. They are able to add whole numbers up to three digits.
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Solving Equations in One Variable
In this solving equations in one variable worksheet, learners solve 38 simple and complex equations. Students then write and solve equations for 6 word problems.
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Introduction to Pre-Algebra
Young scholars explore adding and subtracting positive numbers. Students discuss the use of algebra in our daily lives. They examine the algebraic equations and observe their solutions. Young scholars work on the board and at their desks...
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Mental Math: Addition and Subtraction
Fourth graders exercise their minds in completing mental math skills of adding and subtracting by making multiplies of ten. They compute problems involving multiplication and division of whole numbers and addition and subtraction of...
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Subtraction Across a Zero
This PowerPoint provides a step-by-step model for subtracting 3 digit numbers with zeroes. Each slide shows the problem expressed numerically and a simple age-appropriate description of the step illustrated. Two guided practice problems...
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Drawing a Perspective Floor
Tenth graders investigate the three D world of building. In this geometry lesson, 10th graders investigate math as it relates to the real world, increasing their perspective on mathematical concepts. They realize there is more to math...
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Solving One-Step Equations
Ninth graders explore the concept of a simple equation. They use addition and subtraction in one step in order to find balance to both sides of the equation. Students are encouraged to succeed using positive praise at the beginning of...
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Math: Basic Number Operations
In this math worksheet, learners answer 175 questions by applying basic math operations to simple calculation and word problems.
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Moving-Math Hopscotch
Learners engage in a hopscotch game where each square represents a number. In this mental math and movement lesson, students take turns playing traditional hopscotch, but add a mental math component where they add or subtract specific...
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2-Step Equations
In this online math worksheet, students solve for "x" by completing simple two-step equations. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching...
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Visualizing Integers
Students create visuals on the TI Calculator to solve problems. In this algebra lesson, students perform basic operations with integers. They add, subtract, multiply and divide.
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Solving Algebraic Expressions
Learners simplify equations and expressions. In this algebra lesson, students add, subtract, multiply and divide as they solve expressions. They relate factoring to solving polynomials.
D2Tech Software
Score Keeper HD
Tired of trying to keep track of the game's score using your memory alone? Or forgetting where you put your paper and pen? Use this simply designed and easy-to-use score keeper on your mobile device or tablet!
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Whole Numbers Sums and Differences
In this adding and subtracting learning exercise, students read and solve two story problems about sports. Students determine which team won and with what score. These are simple calculations that have multiple steps.
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Basic Subtraction
In this subtraction worksheet, students practice their subtracting skills. Students solve twenty simple one and two- digit problems.
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Basic Subtraction Facts
For this subtraction problems worksheet, students practice their subtracting skills. Students solve twenty simple one-digit and two-digit subtraction problems.
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More or Less Pigs in the Pen
Students practice simple addition and subtraction. They identify relationships among whole numbers.