Quiz : Maîtrise les bases des maths en 7ème année !

Question 1 sur 10 10:00

[{"id":27388,"question":"Quel est le résultat de 24 × 5 ?","option_a":"100","option_b":"120","option_c":"110","option_d":"130","option_e":"","option_f":"","bonne_reponse":"B","explication":"24 × 5 = 120. Multiplier un nombre par 5 revient à le multiplier par 10 puis diviser par 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27389,"question":"La fraction 12\/18 peut être simplifiée en :","option_a":"2\/3","option_b":"4\/6","option_c":"6\/9","option_d":"1\/2","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le PGCD de 12 et 18 est 6. Diviser le numérateur et le dénominateur par 6 donne 2\/3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27390,"question":"Vrai ou Faux ? Dans une division euclidienne, le reste est toujours inférieur au diviseur.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Par définition, le reste d’une division euclidienne est toujours strictement inférieur au diviseur.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27391,"question":"Quel est le résultat de 156 ÷ 12 ?","option_a":"12","option_b":"13","option_c":"14","option_d":"15","option_e":"","option_f":"","bonne_reponse":"B","explication":"156 ÷ 12 = 13. Vérification : 12 × 13 = 156.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27392,"question":"Vrai ou Faux ? Pour additionner deux fractions de même dénominateur, on additionne les numérateurs et on garde le dénominateur.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"C’est exact : (a\/c) + (b\/c) = (a+b)\/c.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27393,"question":"Quel est le résultat de 3\/4 + 1\/4 ?","option_a":"1","option_b":"4\/8","option_c":"1\/2","option_d":"3\/8","option_e":"","option_f":"","bonne_reponse":"A","explication":"3\/4 + 1\/4 = 4\/4 = 1.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27394,"question":"Un problème demande : 'Si un livre coûte 12 dinars et j’en achète 3, combien vais-je payer ?'. Quelle opération doit-on effectuer ?","option_a":"12 + 3","option_b":"12 - 3","option_c":"12 × 3","option_d":"12 ÷ 3","option_e":"","option_f":"","bonne_reponse":"C","explication":"Il s’agit d’une multiplication : 12 dinars × 3 livres = 36 dinars.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27395,"question":"Vrai ou Faux ? 0,5 est égal à 1\/2.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"0,5 = 5\/10 = 1\/2 après simplification.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27396,"question":"Quel est le résultat de 7 × (8 + 2) ?","option_a":"70","option_b":"56","option_c":"17","option_d":"64","option_e":"","option_f":"","bonne_reponse":"A","explication":"D’abord calculer la parenthèse : 8 + 2 = 10, puis 7 × 10 = 70.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":27397,"question":"Si un gâteau est partagé en 8 parts égales et j’en mange 3, quelle fraction du gâteau reste-t-il ?","option_a":"3\/8","option_b":"5\/8","option_c":"1\/2","option_d":"8\/3","option_e":"","option_f":"","bonne_reponse":"B","explication":"Il reste 8 - 3 = 5 parts sur 8, soit 5\/8 du gâteau.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]