Website
Primary Resources

Primary Resources: Basic Addition and Subtraction

For Teachers Pre-K - 1st
An extensive collection of teacher resources to help in teaching and reviewing the concepts of basic addition and subtraction. There are many worksheets, activities, PowerPoint presentations, smartboard activities, Word, Excel, and pdf...
Website
Primary Resources

Primary Resources: Addition and Subtraction Resources

For Teachers Pre-K - 1st
Here's an extensive selection of teacher resources to aide in teaching and reviewing addition and subtraction. You will find resources on the vocabulary used in word problems, column addition, checking addition and subtraction, games,...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Hamburger Restaurant: Addition and Subtraction

For Students 4th - 5th
On this interactive site students practice addition and subtraction skills. At the end of the lesson students will be able to solve addition problems using a formal written algorithm and use various strategies to solve unfamiliar problems.
Interactive
Other

Visnos: Addition & Subtraction Facts

For Students 1st - 2nd Standards
Teaches addition and subtraction facts up to twenty using animated penguins. The penguins jump between two icebergs to show addition facts for the given total. For subtraction facts the penguins dive off the iceberg into the water below....
Professional Doc
Teachnology

Teachnology: Addition and Subtraction Teaching Theme

For Teachers Pre-K - 1st
Addition and Subtraction Math Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition and subtraction skills.
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Math Fact Cafe

Math Fact Cafe: Flashcards: 3rd Grade: Math Facts

For Students Pre-K - 1st
Practice your basic addition, subtraction, multiplication and division facts using these interactive flashcards. Each section gives you 20 flashcards. After each correct answer the card turns green. If you get an incorrect answer the...
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
Scholastic

Scholastic: Math Maven's Mysteries: The Case of the Hatcher Hotel Heist

For Students K - 1st Standards
Help Math Maven solve this mystery! Items are missing from several hotel rooms, but some addition and subtraction clues have been left behind. Use your skills to figure out where the thief will strike next!
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Llama Farm: Addition and Subtraction

For Students 4th - 6th Standards
On this interactive site students learn to solve subtraction problems using a formal algorithm and to apply place value concepts.
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Knowledge Share

Super Kids: Addition and Subtraction Worksheet Creator

For Teachers 3rd - 8th
Create your own addition/subtraction math facts worksheets. Use them in the classroom for practice or timed drills, or at home! Choose from two levels of difficulty, and vertical or horizontal equation format. You input minimum and...
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Mr. Martini's Classroom

Mr. Martini's Classroom: Addition and Subtraction Quiz

For Students Pre-K - 1st Standards
Students can test their knowledge of addition and subtraction facts. They can choose to have their quiz graded or select new problems.
Whiteboard
SMART Technologies

Smart: Addition Strategies Fact Families

For Teachers K - 1st
Smart Exchange is an online community that teachers can share resources. This SMART Notebook file is a great introduction to what fact families are and how 3 numbers can be related to one another. This fact house offers activities to...
Activity
Can Teach

Can Teach: Who Has More or Less?

For Teachers 2nd - 4th
Want to practice addition and subtraction skills in a new and exciting way? Use this online math lesson card game activity.
Whiteboard
SMART Technologies

Smart: Fact Family Houses

For Teachers K - 1st
Smart Exchange is an online community that teachers can share resources. This SMART Notebook file discusses the concept of fact families to help students practice addition and subtraction facts.
Professional Doc
Primary Resources

Primary Resources: General Multiplication and Division

For Teachers Pre-K - 1st Standards
A huge collection of teacher resources in basic multiplication and division. Information on multiplication as repeated addition and division as repeated subtraction. Includes worksheets, games, PowerPoint presentations, smartboard...
Unit Plan
Khan Academy

Khan Academy: Find Missing Number (Add and Subtract Within 20)

For Students K - 1st Standards
Learn how to solve problems like "___ - 7 = 18" where you don't know one of the values in an addition or subtraction equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Activity
Other

Elementary Math Worksheets

For Students 3rd - 5th Standards
Print out different math practice sheets on the same topic as needed. A variety of practice sheets in the areas of addition, subtraction, multiplication and division are available.
Activity
Scholastic

Scholastic: Math Maven's Mysteries: The Cuckoo Caper

For Students 3rd - 8th
The famous Clockenheimer Cuckoo is missing from Clockenheimer Clocks on Main Street! Help Math Maven get it back by solving a math riddle.
Interactive
Other

Crick Primary School: Mathematical Puzzles

For Students Pre-K - 1st
The resource consists of 378,028 math puzzles available in three different levels. Students use multiplication, division, addition, and subtraction skills to solve the puzzles. The puzzles can be solved online or downloaded as a PDF file.
Article
DOGO Media

Dogo News: "Mad Minute" Tests Could Make You a Math Whiz

For Students 3rd - 8th Standards
How well do you know your addition and subtraction facts and multiplication tables? In this article you'll learn what brain studies show about the value of memorizing and using such fact sets.
Interactive
Scholastic

Scholastic: Math Facts

For Students 3rd - 5th
This one page website from Scholastic offers two math facts games and a secret code idea all to help you remember your math facts.
Activity
University of Cambridge

University of Cambridge: Nrich: Routes 1 and 5

For Students 3rd - 8th Standards
Sharpen your logic and basic arithmetic skills while working on this challenge. Solution.
Activity
University of Cambridge

University of Cambridge: Nrich: 2, 4, 6, 8

For Students Pre-K - 1st Standards
On this one page website sharpen your logic, addition, and subtraction skills while working on this challenge. The solution is available to double check your solution.
Activity
Math Is Fun

Math Is Fun: Word Questions: Elementary Subtraction

For Students Pre-K - 1st Standards
Simple word problems challenge your subtraction skills. If you get stuck, use the clues and the number line for help.