Seconde série – Correction Devoir N°23

Exercice 1

61 + 16 = 77

5 × 2 = 10

5 × 5 = 25

96 + 50 = 146

2 × 2 = 4

88 – 30 = 58

89 + 19 = 108

66 + 77 = 143

9 × 4 = 36

10 × 7 = 70

71 + 36 = 107

92 + 74 = 166

65 – 45 = 20

80 + 93 = 173

89 – 67 = 22

54 : 6 = 9

92 – 17 = 75

7 × 10 = 70

50 : 10 = 5

66 – 22 = 44

Exercice 2

12 cm= 0,12 m

125 mm= 0,125 m

4.56 km= 560 m

2,45 hm= 245 m

2,16 dam= 21,6 m

45,625 km= 45625 m

32,5 cm= 0.325 m

745 km= 745000 m

1.7 km= 1700 m

1253 mm= 1,253 m