transmath 6eme exercice transmath 6eme exercice 1 page 32 exercice 1 page 32 Probleme 85 page 198 Indigo 3e math Indigo 3 éme Correction declic math 1ereS Correction declic math 1ere Page 463 exercice 27 et 28 Mission indigo 3ème 25p126