Maths 7ème : Testez vos connaissances en arithmétique et géométrie !

Question 1 sur 10 10:00

[{"id":74322,"question":"Quel est le résultat de 456 + 789 ?","option_a":"1 245","option_b":"1 145","option_c":"1 345","option_d":"1 235","option_e":"","option_f":"","bonne_reponse":"B","explication":"456 + 789 = 1 245. Additionnez les unités, puis les dizaines et les centaines pour vérifier.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74323,"question":"Un rectangle a une longueur de 8 cm et une largeur de 5 cm. Quel est son périmètre ?","option_a":"26 cm","option_b":"40 cm","option_c":"13 cm","option_d":"30 cm","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le périmètre d'un rectangle se calcule avec la formule : P = 2 × (longueur + largeur). Ici, P = 2 × (8 + 5) = 26 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74324,"question":"Vrai ou Faux ? La fraction 3\/4 est supérieure à 1\/2.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"3\/4 = 0,75 et 1\/2 = 0,5. 0,75 \u003E 0,5, donc la fraction 3\/4 est bien supérieure à 1\/2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74325,"question":"Quel est le résultat de 15 × 0,2 ?","option_a":"3","option_b":"30","option_c":"0,3","option_d":"1,5","option_e":"","option_f":"","bonne_reponse":"C","explication":"15 × 0,2 = 3. Multiplier par 0,2 revient à diviser par 5 (car 0,2 = 1\/5).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74326,"question":"Vrai ou Faux ? Un carré est un rectangle particulier.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un carré est un rectangle dont les quatre côtés sont égaux et les quatre angles sont droits. C'est donc un cas particulier de rectangle.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74327,"question":"Quel est le résultat de 123,45 - 56,78 ?","option_a":"66,67","option_b":"66,77","option_c":"67,67","option_d":"67,77","option_e":"","option_f":"","bonne_reponse":"A","explication":"123,45 - 56,78 = 66,67. Soustraisez les parties décimales puis les parties entières.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74328,"question":"Vrai ou Faux ? 25 % de 200 est égal à 50.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"25 % de 200 = (25\/100) × 200 = 50. Le calcul est correct.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74329,"question":"Quel est le résultat de 3\/4 + 1\/8 ?","option_a":"4\/8","option_b":"5\/8","option_c":"7\/8","option_d":"1","option_e":"","option_f":"","bonne_reponse":"B","explication":"Pour additionner 3\/4 et 1\/8, trouvez un dénominateur commun (8). 3\/4 = 6\/8, donc 6\/8 + 1\/8 = 7\/8.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74330,"question":"Vrai ou Faux ? Un triangle équilatéral a trois angles égaux à 60°.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Dans un triangle équilatéral, les trois côtés sont égaux et les trois angles mesurent chacun 60° (car 180° ÷ 3 = 60°).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":74331,"question":"Quel est le résultat de 100 ÷ 4 × 2 ?","option_a":"50","option_b":"100","option_c":"25","option_d":"200","option_e":"","option_f":"","bonne_reponse":"A","explication":"100 ÷ 4 = 25, puis 25 × 2 = 50. Respectez l'ordre des opérations (division avant multiplication).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]