Quiz Maths 5ème : Calcule, géométrie et problèmes

Question 1 sur 10 10:00

[{"id":56851,"question":"Quel est le résultat de 125 × 8 ?","option_a":"900","option_b":"1000","option_c":"1100","option_d":"1200","option_e":"","option_f":"","bonne_reponse":"B","explication":"125 × 8 = 1000. Cette multiplication est utile pour simplifier des calculs comme 125 × 16 = (125 × 8) × 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56852,"question":"Vrai ou Faux ? Le périmètre d'un carré de côté 5 cm est 25 cm.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le périmètre d'un carré se calcule par 4 × côté. Ici, 4 × 5 = 20 cm. L'affirmation est donc fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56853,"question":"Quelle opération permet de calculer l'aire d'un rectangle de longueur 7 cm et de largeur 4 cm ?","option_a":"7 + 4","option_b":"7 × 4","option_c":"7² + 4²","option_d":"(7 + 4) × 2","option_e":"","option_f":"","bonne_reponse":"B","explication":"L'aire d'un rectangle se calcule par longueur × largeur. Ici, 7 × 4 = 28 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56854,"question":"Vrai ou Faux ? 3,5 kg = 350 g.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"1 kg = 1000 g, donc 3,5 kg = 3500 g. L'affirmation est fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56855,"question":"Quel est le résultat de 456 ÷ 3 ?","option_a":"152","option_b":"150","option_c":"148","option_d":"160","option_e":"","option_f":"","bonne_reponse":"A","explication":"456 ÷ 3 = 152. Pour vérifier, on peut multiplier 152 × 3 = 456.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56856,"question":"Vrai ou Faux ? Dans l'opération 8 + 5 × 2, on effectue d'abord l'addition.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Les priorités opératoires indiquent qu'on effectue d'abord la multiplication (5 × 2 = 10), puis l'addition (8 + 10 = 18).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56857,"question":"Quelle est la somme de 12,3 + 4,7 ?","option_a":"16,0","option_b":"17,0","option_c":"16,10","option_d":"15,6","option_e":"","option_f":"","bonne_reponse":"A","explication":"12,3 + 4,7 = 17,0. On aligne les virgules pour additionner correctement.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56858,"question":"Vrai ou Faux ? Un angle droit mesure 90°.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un angle droit mesure bien 90°. C'est une propriété fondamentale en géométrie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56859,"question":"Quel est le résultat de 2³ ?","option_a":"6","option_b":"8","option_c":"4","option_d":"12","option_e":"","option_f":"","bonne_reponse":"B","explication":"2³ = 2 × 2 × 2 = 8. Les puissances sont des multiplications répétées.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":56860,"question":"Vrai ou Faux ? Le nombre 1234 est divisible par 3.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un nombre est divisible par 3 si la somme de ses chiffres est divisible par 3. Ici, 1+2+3+4=10, qui n'est pas divisible par 3. L'affirmation est fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]