Curated OER
Learning to Add and Subtract
Young learners practice addition and subtraction to solve problems. They use a webquest application to model how to solve math problems using pictures, words and numbers, and also practice using multiplication and division.
Curated OER
Area, Arithmetic and Algebra
Explore the concept of this perfect square trinomial and difference of squares lesson. A hands-on activity that uses paper rectangles and squares to illustrate the perfect-square trinomial and difference of squares formulas.
Curated OER
Add and Subtract
In these twenty pages of addition and subtraction problems worksheets, students subtract one-digit from one-and two digits, add one-digit plus one- and two digits, and both add and subtract to problem solve. Students solve 200 problems.
Curated OER
Add and Subtract within 20 - Independent Practice
Although this instructional activity says it contains addition and subtraction within 20, it doesn't. Learners will have to add and subtract double-digit numbers with answers up to at least 30. However, it does provide good practice.
Curated OER
Add and Subtract Equations With Equal Sign - Guided Lesson Explanation
What sign is missing? Is this equation true? Rather than a worksheet, this resource is a one-page script for a guided lesson on addition and subtraction equations. While the pupil handout is missing, the teacher guide could be...
Curated OER
Integer Addition
Seventh graders explore the concept of integer addition. For 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...
Curated OER
Addition and Subtraction
In this addition and subtraction worksheet, students fill in missing numbers in addition and subtraction problems, helping "Molly get out of the pyramid." A reference web site is given for additional activities.
Curated OER
Twenty-Eight Addition and Subtraction of Radicals
In this radicals worksheet, students add or subtract radicals in twenty-eight problems. In most problems, students need to simplify radicals first, in-order to perform the indicated operation.
Curated OER
Polynomials - Addition and Subtraction
In this polynomials worksheet, students add and subtract polynomials. Students complete 10 addition and subtraction of polynomial problems.
Curated OER
Addition and Subtraction Practice
In this addition and subtraction worksheet, students add and subtract numbers 0 through 19. Students complete 22 problems on each of the 11 pages.
Curated OER
Codebreaker Math
Students solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages using math...
Curated OER
The Case of the Missing Numbers
In this finding the unknown numbers worksheet, students help Detective Digit solve addition and subtraction problems, match the answers with letters, and find the name of the number thief. Students solve and match 16 problems.
Curated OER
Inverse Relationships (5)
In this addition and subtraction fact family worksheet, students use the numbers given to fill in the missing numbers in each pair of fact families. Students solve 60 problems.
Curated OER
Word Addition and Subtraction
In this adding and subtracting activity, students read addition equations and write answers in manuscript and subtract one-digit numbers from two-digit numbers. Students solve 8 problems.
Curated OER
Inverse
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...
K-5 Math Teaching Resources
2-Digit Addition Template
Learning two-digit addition isn't about memorizing steps, it's about understanding place value. Support the development of your class's number sense with these addition mats that help children break apart two-digit numbers into tens and...
Curated OER
Number Operations
Inject fun into your math review! Pupils review basic math operations with decimals as well as addition and subtraction with simple fractions. In this number operations lesson, students work in groups to create a game for the math skill...
Illustrative Mathematics
Field Day Scarcity
Introduce young mathematicians to concepts of financial literacy with this open-ended word problem. With seven dollars to spend during field day and given a list of available items and their prices, children must determine how they want...
EngageNY
If–Then Moves with Integer Number Cards
Pairs with the same sum of integer cards verify the addition and subtraction properties of equality by adding and subtracting like cards to each hand. They also justify the multiplication and division properties of equality using...
Los Angeles Valley College
Adding and Subtracting Integers
Practice adding and subtracting positive and negative numbers with a forty-problem integers worksheet.
Arcademics
Four Wheel Fracas
A quick learning game challenges players to solve one-step addition and subtraction algebraic equations. Scholars play against several others, racing around the track in their four-wheeler, to see who can solve for a variable as fast...
EngageNY
Applying the Properties of Operations to Add and Subtract Rational Numbers 2
The ninth part in a 25-part series emphasizes the importance of using properties of operations in evaluating sums and differences of rational numbers. Pupils solve problems and provide justifications for each step.
CK-12 Foundation
Linear Systems with Addition and Subtraction: XYZ Tiles
Cover it up to reveal the values of variables. Using arrangements of colored tiles representing algebraic expressions, pupils layer them over each other to determine the values of variables. The procedure models the elimination method in...
EngageNY
Four Interesting Transformations of Functions (Part 2)
What happens to a function whose graph is translated horizontally? Groups find out as they investigate the effects of addition and subtraction within a function. This nineteenth lesson in a 26-part series focuses on horizontal...
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