Unit Plan
AAA Math

Aaa Math: Place Values

For Students 1st - 3rd Standards
Students identify place values in a series of self-check exercises and timed learning games.
Unit Plan
AAA Math

Aaa Math: Specific Place Values

For Students 2nd - 3rd Standards
Students review whole number place value through the hundreds and practice the skill through a series of self-check exercises and timed learning games.
Activity
AAA Math

Aaa Math: Place Values

For Students 1st - 4th Standards
Learners practice stating the value in the ones and tens place value.
Activity
AAA Math

Aaa Math: Inverse Relationship of Addition and Subtraction

For Students Pre-K - 1st Standards
This site introduces addition and subtraction fact families and provides an opportunity for students to practice the skill.
Activity
School Express

School Express: Online Addition

For Students Pre-K - 1st Standards
Great place to sharpen your addition skills. Start with basic facts and go all the way up to 3 digit addition with regrouping. You select the level of difficulty and the number of problems. You can also check your answer right away.
Unit Plan
AAA Math

Aaa Math: Place Value

For Students 3rd - 5th Standards
AAAMath: Place Value is a learning modual that students practice finidng place values
Activity
Texas Instruments

Texas Instruments: Number and Operation Sense: Whole Numbers

For Teachers Pre-K - 1st Standards
In this activity, students attain a basic understanding of numbers and number operations, developing number sense, and gaining fluency in arithmetic computation. They also learn to use the calculator to explore the mathematical...
Activity
Beacon Learning Center

Beacon Learning Center: Checking Subtraction

For Students Pre-K - 1st Standards
Students can explore the inverse relationship of addition and subtraction in this interactive web lesson.
Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Adding With Multiple Choice Answers

For Students Pre-K - 1st Standards
Practice addition facts 4 to 9 with this interactive multiple choice activity.
Professional Doc
Queen's Printer for Ontario

E workshop.on.ca: Number Sense and Numeration, Grds 4 6: Addition, Subtract [Pdf]

For Teachers 3rd - 8th Standards
Volume 2 of an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for teaching addition and subtraction to students in grades 4 through 6. Include a series of suggested activities.
Interactive
Other

Sums Math: Bracket Basics

For Students K - 1st Standards
Students use their knowledge of order of operations to complete the number sentence.
Unit Plan
Scholastic

Scholastic: Study Jams! Math: Relate Adding, Subtracting

For Students 1st - 4th Standards
Watch a short video on the relationship between addition and subtraction then assess your knowledge with practice questions.
Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Mr. Martini's Classroom: Adding Objects

For Students Pre-K - 1st Standards
Practice addition facts 1 to 9 with numbers and pictures in this interactive game.
Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Picking Signs

For Students Pre-K - 1st Standards
Chose which sign addition or subtraction completes the expression. Click "How to do this" for further instructions.
Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Kids' Subtract Up to 9

For Students Pre-K - 1st Standards
Practice subtraction facts up to nine with this interactive exercise.
Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Kids' Subtract Up to 4

For Students Pre-K - 1st Standards
Practice subtraction facts up to four using this interactive exercise.
Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Subtracting With Multiple Choices Math Facts

For Students Pre-K - 1st Standards
Practice subtraction facts 4 to 9 with this interactive multiple choice activity.
Interactive
Mangahigh

Mangahigh: Number: Use Inverses

For Students 2nd - 4th Standards
Explore addition and subtraction and how they are related.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Add and Subtract Numbers to 1000 (Grade 3)

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] This learning module features four videos and a set of practice questionsin which students use addition and subtraction to solve problems with more than two values...
Activity
Illustrative Mathematics

Illustrative Mathematics: Peyton and Presley Discuss Addition

For Teachers 1st - 3rd Standards
The purpose of this task is to support students in developing an understanding of a place value strategy for adding numbers. By using a representation to visualize the abstract notation, students will make sense of the strategy, adding...
Activity
Other

Maths.cilenia.com: Addition

For Students 1st - 4th Standards
Students will practice addition. subtraction, multiplication, and division by changing the sign and solving.
Professional Doc
Annenberg Foundation

Annenberg Learner: Operations

For Teachers 3rd - 5th Standards
Anneberg Learner: Operations the source provides addition, subtraction, multiplication, and division. It also provides an understanding of its relationships to whole numbers.
Interactive
University of Waterloo (Canada)

University of Waterloo: Order of Operations

For Students 3rd - 8th Standards
A quick game in which students must evaluate an arithmetic expression involving three numbers and any of the four basic operations (addition, subtraction, multiplication, division). Students must be careful to do the operations in the...
Website
Cool Math

Coolmath: Coolmath4kids: Addition

For Students K - 1st Standards
A set of seven short tutorials on addition. Begins with a basic introduction to how addition works, and covers topics such as using a number line, place value, and regrouping.