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Sagot :

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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