Quiz interactif : Testez vos connaissances en mathématiques du collège !

Question 1 sur 10 10:00

[{"id":67902,"question":"Quel est le résultat de l'opération 7 × (5 + 3) ?","option_a":"56","option_b":"42","option_c":"35","option_d":"28","option_e":"","option_f":"","bonne_reponse":"B","explication":"Appliquez d'abord la règle des parenthèses : 5 + 3 = 8, puis multipliez par 7 : 7 × 8 = 56.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67903,"question":"Un triangle rectangle a un angle de 30°. Quel est la mesure de l'autre angle aigu ?","option_a":"60°","option_b":"45°","option_c":"90°","option_d":"120°","option_e":"","option_f":"","bonne_reponse":"A","explication":"La somme des angles d'un triangle est 180°. Si un angle est 90° et un autre 30°, le troisième mesure 180° - 90° - 30° = 60°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67904,"question":"Vrai ou Faux ? Le carré de 5 est égal à 25.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"5² = 5 × 5 = 25, donc l'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67905,"question":"Quel est le périmètre d'un rectangle de longueur 8 cm et de largeur 5 cm ?","option_a":"13 cm","option_b":"26 cm","option_c":"40 cm","option_d":"30 cm","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le périmètre se calcule par 2 × (longueur + largeur) = 2 × (8 + 5) = 26 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67906,"question":"Vrai ou Faux ? La fraction 3\/4 est supérieure à 1.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"3\/4 = 0,75, qui est inférieur à 1. L'affirmation est donc fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67907,"question":"Quel est le résultat de 15 ÷ 3 × 2 ?","option_a":"2,5","option_b":"10","option_c":"25","option_d":"5","option_e":"","option_f":"","bonne_reponse":"B","explication":"Appliquez les opérations de gauche à droite : 15 ÷ 3 = 5, puis 5 × 2 = 10.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67908,"question":"Vrai ou Faux ? Un parallélogramme a ses diagonales qui se coupent en leur milieu.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"C'est une propriété fondamentale des parallélogrammes : leurs diagonales se coupent en leur milieu.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67909,"question":"Quel est le volume d'un cube d'arête 4 cm ?","option_a":"16 cm³","option_b":"32 cm³","option_c":"64 cm³","option_d":"12 cm³","option_e":"","option_f":"","bonne_reponse":"C","explication":"Le volume d'un cube se calcule par arête³ : 4 × 4 × 4 = 64 cm³.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67910,"question":"Vrai ou Faux ? La racine carrée de 16 est 4.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"√16 = 4, car 4 × 4 = 16. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":67911,"question":"Quel est le résultat de (2 + 3)² - 4 × 2 ?","option_a":"17","option_b":"21","option_c":"25","option_d":"13","option_e":"","option_f":"","bonne_reponse":"A","explication":"Calculez d'abord les parenthèses : (2 + 3)² = 5² = 25. Puis 4 × 2 = 8. Enfin, 25 - 8 = 17.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]