Interactive
Cool Math

Coolmath: Coolmath4kids: Alien Addition

For Students 1st - 3rd
Blast alien invaders to practice your addition!
Activity
University of Cambridge

University of Cambridge: Nrich: Game Asteroid Blast

For Students Pre-K - 1st Standards
Use this game to improve your addition, subtraction, multiplication, and division basic facts. Practice all these skills and have fun at the same time! There is a "Get Printable Page," link at the top to print out the materials you need.
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Varsity Tutors

Varsity Tutors: Aplusmath: Addition Worksheets

For Students 1st - 8th Standards
Create customized addition worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can also be...
Activity
Utah State University

Teacher Link Printable Teacher Aids

For Teachers Pre-K - 1st Standards
A huge collection of worksheets for addition, subtraction, multiplication, division, and handwriting practice all on PDF files ready for you to download and print for your students.
Activity
Scholastic

Scholastic: Max's Math Adventures: Farmer Fred's Counting Farm

For Teachers 3rd - 5th
Add and rhyme with Farmer Fred, then use the activity sheet to work through some more farm addition. The teacher's guide and extra challenges will be helpful in lesson planning.
Interactive
Varsity Tutors

Varsity Tutors: Aplus Math: Addition Flashcards

For Students K - 1st
Practice basic addition facts using online flashcards. The game keeps track of how many of the attempted flashcards you get correct, and lets you know your percentage. Did you input an incorrect answer? Don't worry, a message with the...
Interactive
Varsity Tutors

Varsity Tutors: Aplus Math: Addition Concentration

For Students K - 1st
Practice your basic addition facts using this interactive online game of Concentration. Please note that this is a Java application needing Microsoft Internet Explorer 4.x or Netscape 4.5 or greater.
Activity
Varsity Tutors

Varsity Tutors: Aplus Math: Addition Hidden Picture (Non Java)

For Students K - 1st
Uncover the hidden picture by correctly choosing answers to basic addition facts. This fun interactive online game will have your students asking to practice their math!
Activity
Math Cats

Math Cat: Fact Family Card

For Students Pre-K - 1st
Everything you need to know about fact families can be found here. Discover what fact families are and learn different strategies for using them. Links included to print your own fact family cards, create a fact family house, and play a...
Activity
Math Fact Cafe

Math Fact Cafe

For Students Pre-K - 1st
This site provides math fact sheets and flashcards for parents and teachers. Access hundreds of pre-generated math sheets, or create custom sheets to meet your own special needs.
Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Facts of Ten [Pdf]

For Students 1st - 3rd Standards
You and a partner try to pick cards that are facts of ten.
Interactive
ABCya

Ab Cya: Addition With Manipulatives

For Students Pre-K - 1st Standards
An interactive addition game that includes movable manipulatives. An engaging tool for building skills with one and two digit addition facts. Immediate feedback given.
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Other

Project Happy Child: Free Addition Worksheets

For Students Pre-K - 1st Standards
2000 basic addition worksheets are available at this web site. They can be printed and used for a variety of practice purposes. Some helpful hints are included to avoid mindless practice that could quickly become counter productive.
Activity
AAA Math

Aaa Math: Addition Facts Adding 3 and 4

For Students K - 1st Standards
Practice your 3 and 4 addition facts using this online game from AAAMath.com. Running totals of correct and incorrect answers, as well as a percent score of your correct answers are shown to you while you play.
Activity
AAA Math

Aaa Math: Addition Facts: Adding 5 and 6

For Students K - 1st Standards
Practice your 5 and 6 addition facts using this online game. Running totals of your correct and incorrect answers, as well as a percent score of your correct answers are given.
Activity
AAA Math

Aaa Math: Addition Facts: Adding 9 and 10

For Students K - 1st Standards
Use this online game to practice your 9 and 10 addition facts. A percent score of your correct answers, as well as running totals of correct and incorrect answers are given while you play.
Activity
AAA Math

Aaa Math: Addition: Facts Through 10's

For Students K - 1st Standards
Use this online game to practice your addition facts through 10+10. The game keeps track of how many answers you have correct and incorrect. It even gives you a percent score of your correct answers.
Activity
AAA Math

Aaa Math: Addition Facts: Adding 0, 1, 2

For Students K - 1st Standards
Practice adding 0, 1, and 2 with other numbers. This game helps you sharpen your addition facts. It keeps a running total of incorrect and correct answers, as well as a percent score of your correct answers.
Activity
AAA Math

Aaa Math: Addition Facts: Adding 7 and 8

For Students K - 1st Standards
Addition of 7 and 8 can be practiced with this online game. A percent score of your correct answers, as well as running totals of your correct and incorrect answers are given as you play.
Interactive
AAA Math

Aaa Math: Adding Three Digit Numbers

For Students 2nd - 5th Standards
Read through this explanation of how to add three digit numbers. Use the online game to practice this skill. The game will keep running totals of your correct and incorrect answers. It will also show you a percent score of the correct...
Interactive
AAA Math

Aaa Math: Vertical Addition

For Students 1st - 5th
See examples of addition problems that are arranged vertically. There is also a game that allows you to practice your addition skills. The game keeps track of your correct and incorrect answers, it also gives a percentage score of your...
Activity
Scholastic

Scholastic: Max's Math Adventures: Card Castle Addition

For Teachers 3rd - 5th
Use this site to see how Max and Ruthie built a castle inside Max's room! Teachers will want to look through the extra challenges and the teacher's guide to help with creating engaging lesson plans.
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Food Market: Addition and Multiplication

For Students K - 1st Standards
Go shopping with Annie and learn to add and multiply.
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Husky Sled: Addition to 20

For Students K - 1st Standards
Kodi the sled dog needs your help. Can you help him count?