National Security Agency
Introducing Integers and Their Operations
There's nothing negative about this mini-unit on integers! Engaging young mathematicians in a series of hands-on activities and collaborative learning opportunities, this resource offers an excellent way to introduce your class...
Curated OER
Curriculum Links To Numeracy
Youngsters practice looking for the links to numeracy in their classes. This isn't a worksheet but a curriculum guide for an entire unit. Teachers can use any part of the resource to extend or inform their teaching practices related to...
Curated OER
We Are a Fact Family! Integration Is the Key!
Students practice addition and subtraction. In this fact families unit, students practice finding sums and differences for fact families. This unit includes ten lessons with science and social studies integration.
CK-12 Foundation
Ck 12: Algebra: Numerical Expression Evaluation With Basic Operations
[Free Registration/Login may be required to access all resource tools.] In this lesson students evaluate variable expressions using addition, subtraction, multiplication and division. Students examine guided notes, review guided...
E-learning for Kids
E Learning for Kids: Math: Igloo: Addition
It takes a lot of math to build an Igloo. Can you help Kirima? Students will learn to select and apply appropriate mental, written or calculator strategies to solve addition problems.
Shmoop University
Shmoop: Basic Operations: Adding Integers
Students learn how to add integers. The resource consists of notes, examples, and practice problems with solutions.
AAA Math
Aaa Math: Inverse Relationship of Addition and Subtraction
Explains the inverse relationship between addition and subtraction. Gives exercises and games to practice this skill.
Math Slice
Basic Operations: Addition
This resource covers basic addition where students can choose a range of numbers including negatives or even decimals. After selecting parameters students are timed completing ten problems with instant feedback and an opportunity to...
E-learning for Kids
E Learning for Kids: Math: Husky Sled: Addition to 20
Kodi the sled dog needs your help. Can you help him count?
E-learning for Kids
E Learning for Kids: Math: Food Market: Addition and Multiplication
Go shopping with Annie and learn to add and multiply.
E-learning for Kids
E Learning for Kids: Math: Food Market: Addition: Count to 20
Count the fruits and pay the right amount of money to buy them at the market!
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Adding and Subtracting Polynomials
A tutorial as an introduction to polynomials. Basic terminology and simple algebraic manipulations. Offers discussions and practice exercises with answers and explanations.
E-learning for Kids
E Learning for Kids: Math: Music Center: Numbers to 100 and Addition
Help Alec turn his numbers into music!
Learning Wave Communications
Learning Wave: Fractions
This resource contains information about fractions and includes ratios, equivalent fractions, basic operations, and reciprocals. Several links for practice problems are also included, along with links to a post and pretest.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Lengths in Two Steps
[Free Registration/Login may be required to access all resource tools.] This resource is a video that demonstrates using two different steps with addition or subtraction to solve a word problem. Practice word problems follow using two...
AAA Math
Aaa Math: Addition of Decimals
This lesson explains how to add decimals of the tenths place value. Gives practice and games to work on this skill.
CK-12 Foundation
Ck 12: Elem Math: Adding, Subtracting, and Multiplying Missing Number
[Free Registration/Login may be required to access all resource tools.] A learning module where students must apply the order of operations to find the missing numbers in equations involving addition, subtraction, and multiplication. A...
CK-12 Foundation
Ck 12: Algebra: Checking Solutions to Inequalities
[Free Registration/Login may be required to access all resource tools.] This lesson covers graphing and solving basic inequalities. Students watch a video tutorial, explore guided notes and attempt practice problems.
AAA Math
Aaa Math: Adding Money Amounts
Explains how to add money. Gives exercises and games to practice this skill.
E-learning for Kids
E Learning for Kids: Math: Eiffel Tower: Number
Sophia is making a trip to the Eiffel Tower. Join her and count all the numbers!
E-learning for Kids
E Learning for Kids: Math: Eiffel Tower: Number Patterns
Jesse is going to visit the Eiffel Tower. Jump on the elevator with him.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.