Quiz Mathématiques — 7ème année : Testez vos connaissances !

Question 1 sur 10 10:00

[{"id":60207,"question":"Quel est le résultat de l'opération suivante : 7 × (5 + 3) ?","option_a":"48","option_b":"56","option_c":"42","option_d":"63","option_e":"","option_f":"","bonne_reponse":"B","explication":"On applique d'abord la parenthèse : 5 + 3 = 8, puis on multiplie par 7 : 7 × 8 = 56.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60208,"question":"Un carré a un côté de 4 cm. Quelle est son aire ?","option_a":"8 cm²","option_b":"12 cm²","option_c":"16 cm²","option_d":"20 cm²","option_e":"","option_f":"","bonne_reponse":"C","explication":"L'aire d'un carré se calcule avec la formule côté × côté, soit 4 × 4 = 16 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60209,"question":"Vrai ou Faux ? La fraction 3\/4 est égale à 0,75.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"3 divisé par 4 donne bien 0,75, donc l'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60210,"question":"Quel est le résultat de 15 ÷ 3 + 2 × 4 ?","option_a":"13","option_b":"17","option_c":"11","option_d":"23","option_e":"","option_f":"","bonne_reponse":"C","explication":"On applique les priorités opératoires : 15 ÷ 3 = 5, puis 2 × 4 = 8. Enfin, 5 + 8 = 13.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60211,"question":"Vrai ou Faux ? Le périmètre d'un rectangle de longueur 5 cm et de largeur 3 cm est de 16 cm.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le périmètre se calcule avec la formule 2 × (longueur + largeur) = 2 × (5 + 3) = 16 cm. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60212,"question":"Simplifiez la fraction 12\/18.","option_a":"2\/3","option_b":"3\/4","option_c":"4\/6","option_d":"6\/9","option_e":"","option_f":"","bonne_reponse":"A","explication":"On divise le numérateur et le dénominateur par leur PGCD, qui est 6 : 12 ÷ 6 = 2 et 18 ÷ 6 = 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60213,"question":"Quel est le résultat de 5² + 3³ ?","option_a":"52","option_b":"46","option_c":"34","option_d":"28","option_e":"","option_f":"","bonne_reponse":"B","explication":"5² = 25 et 3³ = 27. La somme est donc 25 + 27 = 52.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60214,"question":"Vrai ou Faux ? Un triangle rectangle peut avoir deux angles droits.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un triangle rectangle a un angle droit, mais pas deux. L'affirmation est donc fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60215,"question":"Calculez 1\/2 + 1\/4.","option_a":"2\/6","option_b":"3\/4","option_c":"1\/3","option_d":"1\/8","option_e":"","option_f":"","bonne_reponse":"B","explication":"On met les fractions au même dénominateur : 1\/2 = 2\/4. Puis 2\/4 + 1\/4 = 3\/4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":60216,"question":"Vrai ou Faux ? Le nombre 0,5 est supérieur à 1\/2.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"0,5 est égal à 1\/2, donc il n'est pas supérieur. L'affirmation est fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]