Mathématiques 7ème année : Opérations et fractions

Question 1 sur 10 10:00

[{"id":65952,"question":"Quel est le résultat de l'opération suivante : 12 + 8 × 3 ?","option_a":"36","option_b":"60","option_c":"44","option_d":"24","option_e":"","option_f":"","bonne_reponse":"C","explication":"La multiplication est prioritaire sur l'addition. 8 × 3 = 24, puis 12 + 24 = 36.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65953,"question":"Vrai ou Faux : La fraction 3\/4 est supérieure à 5\/6.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"3\/4 = 0,75 et 5\/6 ≈ 0,83. Donc 3\/4 \u003C 5\/6.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65954,"question":"Quel est le résultat de 7\/8 - 1\/4 ?","option_a":"6\/8","option_b":"5\/8","option_c":"3\/4","option_d":"1\/2","option_e":"","option_f":"","bonne_reponse":"B","explication":"1\/4 = 2\/8, donc 7\/8 - 2\/8 = 5\/8.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65955,"question":"Vrai ou Faux : Dans l'expression 5 + 2 × (3 - 1), on effectue d'abord la soustraction.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Les parenthèses sont prioritaires, donc on effectue d'abord (3 - 1).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65956,"question":"Quel est le résultat de 0,5 × 4 + 2 ?","option_a":"4","option_b":"6","option_c":"2","option_d":"8","option_e":"","option_f":"","bonne_reponse":"B","explication":"0,5 × 4 = 2, puis 2 + 2 = 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65957,"question":"Vrai ou Faux : La fraction 2\/3 est équivalente à 4\/6.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"2\/3 = 4\/6 car 2 × 2 = 4 et 3 × 2 = 6.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65958,"question":"Quel est le résultat de 15 ÷ 3 + 2 × 4 ?","option_a":"14","option_b":"11","option_c":"17","option_d":"20","option_e":"","option_f":"","bonne_reponse":"A","explication":"15 ÷ 3 = 5 et 2 × 4 = 8, donc 5 + 8 = 13.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65959,"question":"Vrai ou Faux : Pour additionner deux fractions, il faut qu'elles aient le même dénominateur.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Oui, pour additionner deux fractions, il faut les réduire au même dénominateur.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65960,"question":"Quel est le résultat de 3\/5 + 1\/10 ?","option_a":"4\/15","option_b":"7\/10","option_c":"4\/10","option_d":"3\/10","option_e":"","option_f":"","bonne_reponse":"B","explication":"3\/5 = 6\/10, donc 6\/10 + 1\/10 = 7\/10.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":65961,"question":"Vrai ou Faux : L'expression 8 - 3 × 2 est égale à 10.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"3 × 2 = 6, puis 8 - 6 = 2. Donc l'expression est égale à 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]