Teachnology
Teachnology: Addition and Subtraction Teaching Theme
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.
Mr. Martini's Classroom
Mr. Martini's Classroom: Equivalent Addition Problems: Fill in the Blank
Students choose the correct number to balance the addition equation and create an equivalent sum.
Khan Academy
Khan Academy: Addition and Subtraction Word Problems 2
Practice solving more challenging word problems with addition and subtraction. Numbers used are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Other
Gynzy: Space Math
In this math learning game, students choose numbers up to 10 or up to 20 and addition or subtraction. They guide an astronaut to the planet with the correct answer for each problem.
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 Flashcards Sums 0 to 9
This website for young children gives them practice adding sums from 0 to 9 in a flashcard type format.