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University of Minnesota
Fraction Operations and Initial Decimal Ideas
Add another strategy to the toolboxes of young mathematicians with this elementary math lesson on using number lines to add and subtract fractions.
Curated OER
Adding & Subtracting (Combining) Integers
Maintain a positive atmosphere in your math class with this fun lesson on adding and subtracting integers. After first explaining the rules for combining positive and negative numbers, this resource uses a comic strip...
McGraw Hill
Adding and Subtracting Radicals
Help remove some of the confusion surrounding the addition and subtraction of radical numbers with this set skills practice problems. Taken straight from the pages of a math text book, this resource provides learners with...
Curated OER
Add and Subtract Within 20
Break down addition and subtraction into short sentences using this brief worksheet. Each question prompts scholars to make a number by doing three math operations. For the first, they make 10 by adding three, adding five, and...
Curated OER
Add and Subtract Decimal Tenths (F)
In this adding and subtracting decimals and whole numbers worksheet, students find the sums and differences of tenths. Students solve 32 problems.
Curated OER
Add and Subtract Decimal Tenths (E)
In this adding and subtracting decimals and whole numbers worksheet, students find the sums and differences for the decimal tenths. Students solve 32 problems.
Scholastic
Study Jams! + and - Without Regrouping
Addition and subtraction are essential skills for all young mathematicians. Explain the step-by-step process with respect to place value using these real-world examples. Focus is on numbers in the tens, hundreds, and thousands, making...
Curated OER
Complex Numbers
Learners are introduced to the concept of imaginary unit and complex numbers. They are taught how to add and subtract complex numbers. Learners define a complex number. They comprehend at least two applications of complex numbers....
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...
Curated OER
Who Wants to Win Millions: Addition and Subtraction
Have your pupils practice basic addition and subtraction skills using this presentation in a game format. Learners add and subtract large numbers and answer word problems. This is a great way to review these concepts.
EngageNY
Addition and Subtraction of Rational Numbers
Apply addition and subtraction of integers to solve problems with rational numbers. Pupils apply the rules for adding and subtracting integers to add and subtract rational numbers. Class members represent the problem with equations and...
Curated OER
Adding and Subtracting Fractions/Mixed Numbers (10)
For this adding and subtracting three step problems worksheet, students add, subtract, or both add and subtract fractions with uncommon denominators and mixed numbers. Students solve 10 problems.
Raytheon
Adding and Subtracting Fractions
In this adding and subtracting fractions learning exercise, students add and subtract fractions including mixed numbers and negatives. Students complete 62 problems.
Curated OER
Math in English Skills I Exercise Book: Addition and Subtraction
Whether your pupils need extra help or they simply need to practice their basic computation skills, this packet will do the trick. It includes a written rationale, answer key, and over 10 pages of double-digit addition and subtraction...
Curated OER
Add or Subtract (up to 50)
Do you add or subtract? It's up to your mathematicians as they fill in the symbol for 16 equations to make them true. The numbers in this section don't exceed 18. Next, learners answer six word problems by determining the missing addend...
Virginia Department of Education
Integers: Addition and Subtraction
Young mathematicians construct their own understanding of integers with an inquiry-based math lesson. Using colored chips to represent positive and negative numbers, children model a series of addition and subtraction problems as...
PHET
Make a Ten
Rate the resource as a perfect 10. Pupils use an interactive to help add and subtract numbers. They first explore how to express whole numbers using hundreds, tens, and ones, then explore how to add whole numbers by combining to make...
Curated OER
How Do You Spend Your Money?
Fifth graders examine ways to save and spend money. They look at ways that people earn, save, and spend money using chapters from Tom Birdseye's Tarantula Shoes. They add and subtract decimals to fill in a worksheet entitled, "Is It a...
EngageNY
Complex Numbers as Vectors
Show your math class how to use vectors in adding complex numbers. Vectors represent complex numbers as opposed to points in the coordinate plane. The class uses the geometric representation to add and subtract complex numbers and...
Curated OER
Add and Subtract Decimal Ten Thousandths (J)
In this addition and subtraction instructional activity, students find the sums of whole numbers with decimals in the ten thousandths place value. Students solve 32 problems.
Curated OER
Addition and Subtraction 2
In this addition and subtraction worksheet, students add and subtract two-digit and three-digit numbers with regrouping. Students solve ten problems.
EngageNY
Scientific Notation
Young mathematicians learn how scientific notation is meant to save time. Part 10, out of a series of 15, asks scholars to recognize the correct use of scientific notation and finish by adding and subtracting numbers using...
EngageNY
Investments—Performing Operations with Rational Numbers
Partners fill out a register to record transactions on a college investment account. They use the amounts listed to calculate the running and current balance of the account, providing experience in adding and subtracting rational numbers.
Ohio Department of Education
Actions with Fractions: Adding and Subtracting Fractions with Common Denominators
Fourth graders develop a conceptual understanding of fractions and begin to add and subtract fractions with like denominators. Included is a worksheet to assess readiness and a teacher's checklist showing class understanding at a...