Exercice 1
12 : 3 = 4
79 + 71 = 150
47 + 93 = 140
18 : 9 = 2
10 × 6 = 60
20 : 10 = 2
81 – 64 = 17
75 – 54 = 21
90 : 10 = 9
75 + 96 = 171
6 : 2 = 3
5 × 3 = 15
56 : 7 = 8
95 – 64 = 31
90 – 71 = 19
76 + 55 = 131
4 × 5 = 20
24 : 3 = 8
4 × 6 = 24
8 × 9 = 72
Exercice 2
2.5 km >1854 m
0.125 km >99 m
1 g > 743 mg
34 250 m =34.25 km
18 cm >125 mm
0.7 km =700 m
0.06 kg > 6000 mg
3.5 km > 2875 m
2.6 hl > 130 l