|
3) Ecris les 10 premiers doubles :
4) Trouve le résultat : Exemple : 25 + 32 = 10 + 10 + 5 + 10 + 10 + 10 + 2 = 50 + 5 + 2 = 50 + 7 = 57
34 + 23 = _________________________________________________________
42 + 17 = _________________________________________________________
55 + 22 = _________________________________________________________
68 + 12 = _________________________________________________________ |