Curated OER
Check Subtraction
In this checking subtraction instructional activity, students learn to check a subtraction problem by using addition. Students solve and check 7 problems in which three digit numbers are subtracted with borrowing.
Curated OER
Yummy Gummy Subtraction
Here is a quick 15 minute lesson intended to introduce subtraction. Learners count and subtract gummy bears to complete 5 problems. The lessons suggest that the gummy bears can be saved and used the next day, but gummy bears get gross...
Curated OER
Yummy Gummy Subtraction
Students practice subtraction facts using gummy bears. In this subtraction lesson, students use the gummy bears as a manipulative to solve simple subtraction facts.
Curated OER
The Role of the Judiciary in a System of Separation of Powers and Checks and Balances
Students determine the difference between the different branches of government and assess the role of each within the American governmental system.
Curated OER
Subtraction with 3 Digit Numbers #2
Take subtraction to the next level with this resource, which contains 20 subtraction problems with three-digit numbers. After completing these problems, second and third graders work on five additional problems, which involve two-digit...
Scholastic
Study Jams! Addition & Subtraction Equations
Zoe is decorating a cake for her grandpa's birthday and needs to know how many more candles to add. Follow along as she explains how to set up and solve algebraic equations in this step-by-step presentation. Equations with negative...
CK-12 Foundation
Whole Number Subtraction: Penguins Go for a Swim
As penguins jump off of an iceberg, young mathematicians count the remaining penguins in order to discover the whole number subtraction answer. As they work through the questions, they can manipulate the red dot to add and subtract more...
Math Learning Center
Grade 1 Supplement Set A3 - Number and Operations: Addition and Subtraction on the Number Line
Hop your way through a mathematical equation with your first grade class as they learn the idea of moving up and down the number line. Adding and subtracting like little frogs is an engaging and clever way to teach/reinforce this concept.
Mathed Up!
Addition and Subtraction
After watching a brief video on addition and subtraction, young mathematicians are put to the test. Including 12 problems, individuals solve word problems to find the least number, total amount, and difference of numbers.
Curated OER
Checking Addition and Subtraction by Estimation
In this mathematics worksheet, students solve various equations using different methods. They estimate each answer by checking the additions and subtractions given for each. Then, students write in the decision column wither definitely...
Curated OER
Guess and Check Word Problems
Using the guess and check method, students solve six word problems involving multiplication and division. Each problem presents a different scenario for students to solve. The worksheet could be used for individual or small group practice.
Curated OER
Check Subtraction
In this subtraction worksheet, 3rd graders check their own work by using addition problems. Students complete 4 problems of subtraction and 1 word problem checking their work for each.
Curated OER
Buddy Check Subtraction
In this subtraction activity, students solve 8 subtraction problems , then check their answer by addition. Students work with a partner who coaches them through the process. Then the students switch roles. Each student solves 4...
Henrico County Public Schools
Models for Teaching Addition and Subtraction of Integers
Positive and negative numbers are everywhere in the world around us. Whether it's charged particles in atoms, a hot air balloon rising and falling in the sky, or a series of bills and checks being delivered in the mail, this resource...
CK-12 Foundation
Addition and Subtraction of Rational Expressions: Strawberry Sherbet Punch
Explore the connection between fractions and rational expressions. Young scholars manipulate fractions with unlike denominators to find a total. Challenge questions allow them to check their work to ensure they are correct.
CK-12 Foundation
Mental Math for Addition and Subtraction Equations: Marble Bag Collector
Don't lose your marbles as your learn about addition and subtraction equations. Pupils investigate the relationship between addition and subtraction by using an interactive. They drag different color marbles into a box and identify the...
Curated OER
Checking Subtraction With Addition
In this subtraction worksheet, 2nd graders use the opposite operation to check their work. Students complete 6 double digit subtraction problems using addition to self check.
Curated OER
Check Subtraction
In this subtraction word problems worksheet, students use subtraction to solve the six word problems. Students then check the problems with addition.
Scholastic
Guess and Check
How can you find the solution to an addition or subtraction problem by guessing? Practice the guess-and-check strategy with a fun math activity based on Ms. Squid's ink mess on the homework. Kids determine which number is covered by the...
Curated OER
Factoring Binomials - Difference of Squares
In this factoring binomials worksheet, students examine problems containing the difference of squares. They factor binomial equations. This one-page worksheet contains 15 problems. Answers are provided.
Curated OER
Check Subtraction with Addition
In this subtraction worksheet, students subtract, then check by adding. Problems are set up side by side, with the correct answer to the addition check noted for the student.
Curated OER
Simplifying Expressions (Addition and Subtraction)
Seventh graders simplify algebraic expressions using addition and subtraction to combine like items and solve for the variable. They work with inverse operations to solve equations with guided practice. Everyone completes various...
Curated OER
Adding and Subtracting Integers: The Symbols + and -
This worksheet begins with an explanation of how to add and subtract positive and negative integers. Learners solve and complete 20 different problems that include these types of problems. First, they fill in each blank with the correct...
Curated OER
Subtraction Word Problems
Budding mathematicians will work through a few word problems using the presented six-step comprehension strategy. They determine what the question is asking, which operation to use, and then solve the problem as a class.