Quiz Maths 7ème : Nombres relatifs, fractions et équations

Question 1 sur 5 10:00

[{"id":2684,"question":"Quel est le résultat de l’opération suivante : (-5) + (+3) - (-2) ?","option_a":"-4","option_b":"-6","option_c":"0","option_d":"-10","option_e":"","option_f":"","bonne_reponse":"A","explication":"On applique les règles des nombres relatifs : (-5) + (+3) = -2, puis -2 - (-2) = -2 + 2 = 0.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2685,"question":"Simplifiez la fraction suivante : 18\/24.","option_a":"3\/4","option_b":"9\/12","option_c":"6\/8","option_d":"2\/3","option_e":"","option_f":"","bonne_reponse":"A","explication":"On divise le numérateur et le dénominateur par leur PGCD, qui est 6 : 18 ÷ 6 = 3 et 24 ÷ 6 = 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2686,"question":"Résolvez l’équation suivante : 3x - 5 = 10.","option_a":"x = 5","option_b":"x = 15","option_c":"x = 3","option_d":"x = -5","option_e":"","option_f":"","bonne_reponse":"A","explication":"On ajoute 5 des deux côtés : 3x = 15, puis on divise par 3 : x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2687,"question":"Quelle est l’aire d’un rectangle de longueur 8 cm et de largeur 5 cm ?","option_a":"40 cm²","option_b":"13 cm²","option_c":"30 cm²","option_d":"26 cm²","option_e":"","option_f":"","bonne_reponse":"A","explication":"L’aire d’un rectangle se calcule par la formule : longueur × largeur = 8 × 5 = 40 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2688,"question":"Quel est le résultat de l’opération : 2\/3 + 1\/6 ?","option_a":"5\/6","option_b":"3\/9","option_c":"4\/6","option_d":"1\/2","option_e":"","option_f":"","bonne_reponse":"A","explication":"On met les fractions au même dénominateur : 2\/3 = 4\/6, puis 4\/6 + 1\/6 = 5\/6.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]