Houghton Mifflin Harcourt
Mental Math: Subtract Tens - Homework 12.1
Now that your class can add by 10s they can start subtracting by 10s. This clear, learner-friendly worksheet provides a good example (10-rods are pictured) and 7 problems to solve. Relates groups of tens to single-digit numbers, which...
CK-12 Foundation
Factor Polynomials Using Special Products: Difference of Two Squares
Factoring patterns are not magic! Show your classes how to model the difference of two squares' factors using an area model. Learners manipulate the width and length of two squares to represent the polynomial a^2-b^2. They use the model...
Curated OER
Decision Making
In this subtraction fact worksheet, 1st graders write six related subtraction facts for each given problem. They solve three word problems using subtraction.
Curated OER
Subtraction-There's Got to be An Easier Way!
Third graders observe and demonstrate a variety of problems involving subtraction problems using mental math strategies. They discuss the base ten system and the basic concept of subtraction, and complete a variety of activities...
Curated OER
Make a Match
Second graders examine the relationship between addition and subtraction. In this number sense lesson, 2nd graders practice their computation skills and use various strategies (including manipulatives and calculators) to add and subtract.
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
Addition and Subtraction Snack Search
In this addition and subtraction worksheet, students solve 33 addition and subtraction problems where they circle the problems that are correct in order to draw paths for an elephant, a horse, and a polar bear to reach their snack.
Curated OER
Section 12-5: Addition and Subtraction of Radicals
In this radical worksheet, students find the sum and difference of given radicals. They simplify radical expressions. This two-page worksheet contains 10 multiple-choice problems. Answers are provided on the last page.
Curated OER
Addition and Subtraction
In this activity about addition and subtraction, learners practice their math skills. Students will gain more understanding of how to add and subtract by completing problems on this activity. There are twenty-six problems with an answer...
Children's Museum of Indianapolis
Anne Frank: Facing Hatred, Daring to Dream
The stories of Anne Frank, Ruby Bridges, and Ryan White illustrate the power of children to make a difference. The three lesson in this must-have resource are designed to inspire young people to make a difference in their world....
Curated OER
Fall 2003 Midterm Exam #1
Electricity is the focus of this college-level midterm exam. It requres physics learners to answer multiple choice and short answer questions in addition to evaluating several diagrams and graphs. This is appropriate for most high school...
Curated OER
Subtraction - Numbers in the Teens
In this math worksheet, 2nd graders find the differences in 23 subtraction problems. They work with numbers through the teens as the minuend and through ten as the subtrahend.
Curated OER
Visual Sum and Difference Word Problems - Independent Practice
The ten prompts on this worksheet are intended for independent practice with addition and subtraction of numbers up to 3000. Space is provided for pupils to illustrate their work. The confusing wording of some the problems would be a...
Curated OER
Decision-Making
Students focus on responsible decision making and values-clarification in this unit of lessons. They examine how values effect decision making can make the difference between a successful life and one filled with problems.
Curated OER
Using Number lines in Addition and Subtraction
Adding and subtracting can be done by counting on or counting down a number line. This presentation provides a complete demonstration and examples of how one can use a number line to solve double-digit addition and subtraction problems....
Curated OER
Who wants to win millions: Subtraction Edition
Solve subtraction problems like a pro. This Jeopardy style math review asks the class to subtract 2 digit numbers, to get to zero, to balance and equation, and to make new numbers. This is an excellent review that covers topics...
Curated OER
Thurgood Marshall Makes a Difference
Students find information about the life and legal career of Thurgood Marshall, including the NAACP and its causes. They comprehend the issues and context of the Brown v. Board of Education case that Marshall argued before the U.S....
Curated OER
Trash or Treasure?
Students explore their experiences and reflect on how one person can make a difference in our world. In this service learning lesson, students analyze themes in music related to encouragement. Students perform a service learning project...
Curated OER
Adding or Subtraction Algebraic Fractions
In this Algebra I/Algebra II worksheet, students add and subtract algebraic fractions and reduce the answer to lowest terms. The two page worksheet contains a combination of eleven multiple choice and free response questions. Answers...
New Zealand Ministry of Education
Addition and Subtraction Pick n Mix
Teach your class how to mentally solve whole number addition and subtraction problems using compensation from tidy numbers including equal additions. They use appropriate recording techniques and predict the usefulness of strategies for...
Curated OER
Observation and Inference
Assess your young scientists' understanding of the difference between observation and inference with this 20-question multiple choice quiz. It reviews a variety of physics and astronomy concepts, such as solar eclipses and sunspots, the...
Colorado State University
What's the Difference Between Blue Light and Red Light?
Finally, an electromagnetic spectrum lab that will get glowing reviews from your class! Explore the nature of light using red and blue LED sources and fantastic phosphorescent paper. Young scientists compare the effects of blue light...
K-5 Math Teaching Resources
Small Ten Frame Cards with Dots
Solidify your mathematicians' addition and subtraction skills using this ten frame printable. Here, you'll find small, ten frame cards with dots representing numbers 11 to 22, equipped to enhance math strategies and boost proficiency.
Curated OER
Vocabulary Multiple Choice. Worksheet 22
In this vocabulary worksheet, students select the best of four choices to complete each of eight sentences. The worksheet is intended to be used with advanced English language learners.