2) Calculer astucieusement : S: 3/2 x 5\3 x 60/30 x -90/5 = ? T: 30/2 x 5/-3 x 4/5 x -7/12 = ?.... Pergunta de ideia deOceaneloup

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2) Calculer astucieusement : S: 3/2 x 5\3 x 60/30 x -90/5 = ?

T: 30/2 x 5/-3 x 4/5 x -7/12 = ?