Mathématiques 7ème : Testez vos connaissances en 10 questions !

Question 1 sur 10 10:00

[{"id":26878,"question":"Quel est le résultat de 45 + 27 × 2 ?","option_a":"99","option_b":"144","option_c":"119","option_d":"109","option_e":"","option_f":"","bonne_reponse":"C","explication":"Il faut d'abord multiplier 27 × 2 = 54, puis additionner 45 + 54 = 99. La multiplication a priorité sur l'addition.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26879,"question":"Un rectangle a une longueur de 8 cm et une largeur de 5 cm. Son périmètre est-il égal à 26 cm ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le périmètre se calcule par (8 + 5) × 2 = 26 cm. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26880,"question":"Quelle est la fraction irréductible équivalente à 18\/24 ?","option_a":"3\/4","option_b":"6\/8","option_c":"9\/12","option_d":"2\/3","option_e":"","option_f":"","bonne_reponse":"A","explication":"On divise le numérateur et le dénominateur par leur PGCD, qui est 6 : 18 ÷ 6 = 3 et 24 ÷ 6 = 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26881,"question":"Si un angle mesure 120°, est-il aigu ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un angle aigu mesure moins de 90°. 120° est un angle obtus.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26882,"question":"Calculez 3\/5 de 25.","option_a":"10","option_b":"15","option_c":"20","option_d":"5","option_e":"","option_f":"","bonne_reponse":"B","explication":"3\/5 × 25 = (3 × 25) \/ 5 = 75 \/ 5 = 15.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26883,"question":"Un carré a un côté de 7 cm. Son aire est-elle égale à 49 cm² ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un carré se calcule par côté × côté : 7 × 7 = 49 cm². L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26884,"question":"Quelle est la somme de 1,25 et 0,75 ?","option_a":"1,50","option_b":"2,00","option_c":"1,95","option_d":"1,75","option_e":"","option_f":"","bonne_reponse":"B","explication":"1,25 + 0,75 = 2,00. Il faut aligner les virgules pour additionner correctement.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26885,"question":"Un triangle isocèle a deux côtés de 6 cm et un troisième de 4 cm. Son périmètre est-il de 16 cm ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le périmètre se calcule par 6 + 6 + 4 = 16 cm. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26886,"question":"Quelle est la moitié de 144 ?","option_a":"72","option_b":"48","option_c":"96","option_d":"64","option_e":"","option_f":"","bonne_reponse":"A","explication":"La moitié de 144 se calcule par 144 ÷ 2 = 72.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26887,"question":"Un angle plat mesure 180°. Est-ce correct ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un angle plat mesure bien 180°. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]