NumberNut
Number Nut: Subtracting More Than Two Values
Get the facts on how to subtract more than two values in this short subtraction lesson. This lesson offers step-by-step examples, suggested strategies and shortcuts, and links to related interactive games. Both games are fast-paced and...
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.