Disfruta Las Matematicas
Disfruta Las Matematicas: Puzzles De Logica
This site contains many logic puzzles. It could be used as fun supplementary materials. Solutions are also provided.
Disfruta Las Matematicas
Disfruta Las Matematicas: Puzzles Con Numeros
This site contains many puzzles dealing with numbers. It could be used as fun supplementary materials. Solutions are also provided.