Maths 7ème : Teste tes connaissances en calcul et géométrie !

Question 1 sur 10 10:00

[{"id":68092,"question":"Quel est le résultat de 3,5 × 2 ?","option_a":"5,5","option_b":"6","option_c":"7","option_d":"8","option_e":"","option_f":"","bonne_reponse":"C","explication":"3,5 × 2 = 7. Multiplier un nombre décimal par 2 revient à le doubler.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68093,"question":"Le périmètre d'un carré de côté 4 cm est de 16 cm.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le périmètre d'un carré se calcule par 4 × côté. Ici, 4 × 4 = 16 cm. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68094,"question":"Quelle est la fraction irréductible de 12\/18 ?","option_a":"2\/3","option_b":"4\/6","option_c":"6\/9","option_d":"3\/4","option_e":"","option_f":"","bonne_reponse":"A","explication":"12\/18 se simplifie en divisant numérateur et dénominateur par 6 : 12 ÷ 6 = 2 et 18 ÷ 6 = 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68095,"question":"L'aire d'un rectangle de longueur 5 cm et de largeur 3 cm est de 15 cm².","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un rectangle se calcule par longueur × largeur. Ici, 5 × 3 = 15 cm². L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68096,"question":"Quel est le résultat de 25 ÷ 5 + 3 ?","option_a":"8","option_b":"5","option_c":"10","option_d":"7","option_e":"","option_f":"","bonne_reponse":"A","explication":"Selon les règles de priorité des opérations, on effectue d'abord la division : 25 ÷ 5 = 5, puis l'addition : 5 + 3 = 8.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68097,"question":"La somme de 1\/4 et 1\/2 est égale à 3\/4.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Pour additionner des fractions, il faut un dénominateur commun. 1\/2 = 2\/4, donc 1\/4 + 2\/4 = 3\/4. L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68098,"question":"Quel est le volume d'un cube de côté 3 cm ?","option_a":"9 cm³","option_b":"12 cm³","option_c":"27 cm³","option_d":"18 cm³","option_e":"","option_f":"","bonne_reponse":"C","explication":"Le volume d'un cube se calcule par côté × côté × côté. Ici, 3 × 3 × 3 = 27 cm³.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68099,"question":"Le nombre 0,75 est équivalent à 3\/4.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"0,75 = 75\/100 = 3\/4 après simplification. L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68100,"question":"Quel est le résultat de 10 - (4 + 2) ?","option_a":"4","option_b":"6","option_c":"8","option_d":"2","option_e":"","option_f":"","bonne_reponse":"A","explication":"On effectue d'abord l'addition entre parenthèses : 4 + 2 = 6, puis la soustraction : 10 - 6 = 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":68101,"question":"Le nombre 1,25 est supérieur à 1,5.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"1,25 est inférieur à 1,5. L'affirmation est donc fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]