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Sagot :

Réponse :

1m=100cm

a) 1m+45cm= 100+45 = 145cm

b) 265cm = 2m65cm

3m9cm = 3*100+9 = 309cm

680cm = 6*100 + 80cm = 6m80cm

7m55 = 7*100+55 = 755cm

1km=1000m

a) 1km328m=1*1000+328=1328m

b) 2165m=2*1000 +165m=2km165m

c)3km600=3*1000+600=3600m

d)6560m=6*1000+560=6560m

4km75m=4*1000+75=4750m

8)

a= 33cm = 330mm

b)150mm=1cm

c)20dm=2m

d)350cm=35dm

e)500m=5m

Explications étape par étape

ABDALLAHTAMOURET

Réponse :

6

a. 1m 45cm = 145 cm

b. 265 cm =2 m 65 cm

c. 3 m 9 cm = 309 cm

d. 680 cm = 6 m 80 cm

e. 7 m 55 cm = 755 cm

7

a. 1 Km 328 m = 1328 m

b. 2165 m = 2 Km 165 m

c. 3 Km 600m = 3600 m

d. 6560 m = 6 Km 560 m

e. 4 Km 75 m = 475 m

8

a. 33 cm = 3,3 mm

b. 150 mm = 15 cm

c. 20 dm = 0,2 m

d. 350 cm = 35 dm

e. 500 cm = 5 m

Explications étape par étape

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