Other
Answermath: Multiplicacion
An online multiplication game which offers practice in mental math and times practice. When you submit the wrong answer, it provides the correct one. Students and teachers can choose how many places to multiply. In Spanish, with links to...
Wikimedia
Wikipedia: Las Cuatro Operaciones Basicas
In Spanish. encyclopedic explanations of the four basic operations. Also linked to other information on arithmetic.
Fundación Cientec
El Gato, Juego De Multiplicacion (Tic Tac Toe Times)
Directions, materials, and rules in Spanish of how to play " Tic Tac Toe Times." Taken from the book "Math Explorer: Games and Activities"