Testez vos connaissances en calcul et en logique mathématique !

Question 1 sur 10 10:00

[{"id":64872,"question":"Quel est le résultat de l'opération suivante : 45 × 12 ?","option_a":"540","option_b":"520","option_c":"480","option_d":"600","option_e":"","option_f":"","bonne_reponse":"A","explication":"45 × 12 = 540. Pour vérifier, décomposez 12 en 10 + 2 : (45 × 10) + (45 × 2) = 450 + 90 = 540.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64873,"question":"La division de 144 par 12 donne 12.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Vrai. 12 × 12 = 144, donc 144 ÷ 12 = 12.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64874,"question":"Quel est le résultat de 3\/4 + 1\/2 ?","option_a":"5\/4","option_b":"4\/6","option_c":"2\/3","option_d":"1","option_e":"","option_f":"","bonne_reponse":"A","explication":"3\/4 + 1\/2 = 3\/4 + 2\/4 = 5\/4. Pour additionner des fractions, il faut un dénominateur commun.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64875,"question":"Le résultat de 125 ÷ 5 est 25.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Vrai. 5 × 25 = 125, donc 125 ÷ 5 = 25.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64876,"question":"Quel est le résultat de l'opération suivante : 7 × (3 + 5) ?","option_a":"56","option_b":"42","option_c":"26","option_d":"84","option_e":"","option_f":"","bonne_reponse":"A","explication":"7 × (3 + 5) = 7 × 8 = 56. Respectez les priorités : les parenthèses d'abord.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64877,"question":"La fraction 8\/12 est irréductible.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Faux. 8\/12 peut être simplifiée par 4 : 8 ÷ 4 = 2 et 12 ÷ 4 = 3, donc 8\/12 = 2\/3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64878,"question":"Quel est le résultat de 0,75 × 8 ?","option_a":"6","option_b":"5,6","option_c":"7,2","option_d":"0,6","option_e":"","option_f":"","bonne_reponse":"A","explication":"0,75 × 8 = 6. 0,75 est équivalent à 3\/4, donc 3\/4 × 8 = 6.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64879,"question":"Le résultat de 100 ÷ 4 est 20.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Faux. 100 ÷ 4 = 25. 4 × 25 = 100.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64880,"question":"Quel est le résultat de l'opération suivante : 15 + 23 × 2 ?","option_a":"76","option_b":"38","option_c":"58","option_d":"43","option_e":"","option_f":"","bonne_reponse":"C","explication":"15 + 23 × 2 = 15 + 46 = 58. Respectez les priorités : la multiplication avant l'addition.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64881,"question":"La fraction 5\/10 est égale à 0,5.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Vrai. 5 ÷ 10 = 0,5. Une fraction peut être convertie en nombre décimal en effectuant la division.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]