Documents Calcul mental. -67 + 7 Diapositive n°1 -67 + 7 = -60 Diapositive n°1.

Page 1 Calcul mental Page 2 -67 + 7 Diapositive n°1 Page 3 -67 + 7 = -60 Diapositive n°1 Page 4 8 – 10 + 2 Diapositive n°2 Page 5 8 – 10 + 2 = 0 Diapositive n°2 Page…