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Problemes de càlcul mental
Ferran Estruch Mascarell
 
CP Verge del Remei
Castelló de Rugat (La Vall d'Albaida) 122 simple problems distributed into 4 packages thought to enforce mental calculus in the second and third cycle of Primary school. These problems are oriented to work with simple operations.
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Licensed under a
how
does it work?
launch (applet)
install
prob2nc.exe
