Réponse:
a 2m
b 100+50+30=180g
c 2m=180
2. 180=2m
m=180÷2
m=90
un pot pèse 90g
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Réponse:
a 2m
b 100+50+30=180g
c 2m=180
2. 180=2m
m=180÷2
m=90
un pot pèse 90g