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