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Mr. Martini's Classroom
Mr. Martini's Classroom: Mr. Martini's Classroom: Adding Objects
Practice addition facts 1 to 9 with numbers and pictures in this interactive game.
University of Cambridge
University of Cambridge: Nrich: Game Asteroid Blast
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.
Varsity Tutors
Varsity Tutors: Aplusmath: Addition Worksheets
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...
Math Playground
Math Playground: Magic Triangle
Practice your addition facts with this magic triangle online game.
Quia
Quia: Addition Matching Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a matching type format.
Quia
Quia: Addition Flashcards Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a flashcard type format.
Quia
Quia: Addition Concentration Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a concentration game type format.
Quia
Quia: Addition Matching Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a matching type format.
Quia
Quia: Addition Concentration Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a concentration game type format.
University of Cambridge
University of Cambridge: Nrich: Game Pass the Peas, Please
Use this game to improve your subtraction or addition skills. Gain skills in two areas at the same time! There is a "Get Printable Page," link at the top to print out materials you need. This game can also be altered to practice...
Other
Elementary Math Worksheets
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.
Can Teach
Can Teach: Who Has More or Less?
Want to practice addition and subtraction skills in a new and exciting way? Use this online math lesson card game activity.
ABCya
Ab Cya: Math Bingo
Test your math facts in addition, subtraction, multiplication, and division with this fun BINGO game. The lower your score the better in all three levels.
Shodor Education Foundation
Shodor Interactivate: Arithmetic Four
You can challenge a friend to play this game to practice your arithmetic skills. Be ready because any kind of problem can pop up. You can adjust the problems to make them harder and also to give you less time.
ICT Games
Ict Games: Funky Mummy
Funky Mummy is a mobile-friendly number facts game. Play this game to practice quick recall of addition, subtraction and multiplication facts.
Cool Math
Coolmath: Coolmath4kids: Printable Flash Cards
Find here flashcards for addition, subtraction, multiplication, and division for printing off and coloring.
Khan Academy
Khan Academy: Find Missing Number (Add and Subtract Within 20)
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...
CK-12 Foundation
Ck 12: Elem Math: Sums of Whole Numbers to 1000 (Grade 3)
[Free Registration/Login may be required to access all resource tools.] This site offers the video "Addition: 3 Digits." and a practice quiz in which students solve problems using addition to find the sum or summand of numbers up to 1000.
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.
Discovery Education
Discovery Education: Web Math: See How Two Numbers Add Together
WebMath offers a good addition practice site. Students can use this site to check their homework assignment. An explanation is given regarding how each answer was arrived at.
Khan Academy
Khan Academy: Add 10s and 100s (No Regrouping)
Practice solving problems like 344+20 and 344+200. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Arcademics
Arcademics: Canoe Puppies
Canoe Puppies is a multiplayer math game that allows students from anywhere in the world to race against each other while practicing adding two-digit numbers!
Better Lesson
Better Lesson: Go Fishing for Doubles
Second graders play a favorite card game which practices the quick and accurate recall of double facts.