Réponse:
Exercice 1:
1)1cm maquette=75cm réel
33cm maquettes
=33x75
=2475cm
=24.75cm
800 cm réels=800:75
=10.66cm
Exercice 2:
1)a)400m(1x800=800:2=400)
b)40 000 cm
1/40 000
2)a)4 000cm(1x2 000=2 000:0,5=4000)
b)400 000 cm
1/400 000
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Réponse:
Exercice 1:
1)1cm maquette=75cm réel
33cm maquettes
=33x75
=2475cm
=24.75cm
800 cm réels=800:75
=10.66cm
Exercice 2:
1)a)400m(1x800=800:2=400)
b)40 000 cm
1/40 000
2)a)4 000cm(1x2 000=2 000:0,5=4000)
b)400 000 cm
1/400 000