Correction Mathématiques : exercice 2 p. 132 a. un piano
exercice 6 p. 132 a. 2 m + 13 cm + 40 mm = 200 cm + 13 cm + 4 cm = 217 cm b. 5 m + 45 dm + 30 mm = 500 cm + 450 cm + 3 cm = 953 cm.
exercice 6 p. 132 a. 2 m + 13 cm + 40 mm = 200 cm + 13 cm + 4 cm = 217 cm b. 5 m + 45 dm + 30 mm = 500 cm + 450 cm + 3 cm = 953 cm.