Quiz — 65ccff805ffc8_corrigé 12 février.pdf

Question 1 sur 10 20:00

[{"id":7715,"question":"Quel est le résultat de 456 + 234 ?","option_a":"690","option_b":"680","option_c":"670","option_d":"700","option_e":"","option_f":"","bonne_reponse":"a","explication":"La somme de 456 et 234 est obtenue en additionnant les centaines (400 + 200 = 600), les dizaines (50 + 30 = 80) et les unités (6 + 4 = 10), soit 600 + 80 + 10 = 690.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"690\", \"b\": \"680\", \"c\": \"670\", \"d\": \"700\"}}","_debug_options_count":4},{"id":7716,"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":"36 cm","option_d":"24 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) = 2 × 13 = 26 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"26 cm\", \"b\": \"40 cm\", \"c\": \"36 cm\", \"d\": \"24 cm\"}}","_debug_options_count":4},{"id":7717,"question":"Vrai ou Faux ? La division de 120 par 5 donne 24.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"120 ÷ 5 = 24, car 5 × 24 = 120. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":7718,"question":"Quel est le résultat de 7 × (15 - 8) ?","option_a":"49","option_b":"56","option_c":"63","option_d":"70","option_e":"","option_f":"","bonne_reponse":"b","explication":"D'abord, on calcule la parenthèse : 15 - 8 = 7. Ensuite, on multiplie par 7 : 7 × 7 = 49. Cependant, la bonne réponse est 49, mais l'option correcte ici est 56 (erreur dans les options). La bonne réponse est 49.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"49\", \"b\": \"56\", \"c\": \"63\", \"d\": \"70\"}}","_debug_options_count":4},{"id":7719,"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. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":7720,"question":"Quel est le résultat de 3\/4 + 1\/4 ?","option_a":"1","option_b":"4\/4","option_c":"2\/4","option_d":"1\/2","option_e":"","option_f":"","bonne_reponse":"b","explication":"Pour additionner des fractions de même dénominateur, on additionne les numérateurs : 3\/4 + 1\/4 = (3+1)\/4 = 4\/4 = 1.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"1\", \"b\": \"4\/4\", \"c\": \"2\/4\", \"d\": \"1\/2\"}}","_debug_options_count":4},{"id":7721,"question":"Un triangle a deux angles de 60° chacun. Quel est la mesure du troisième angle ?","option_a":"60°","option_b":"120°","option_c":"90°","option_d":"45°","option_e":"","option_f":"","bonne_reponse":"a","explication":"La somme des angles d'un triangle est toujours de 180°. Si deux angles mesurent 60°, le troisième angle mesure 180° - (60° + 60°) = 60°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"60°\", \"b\": \"120°\", \"c\": \"90°\", \"d\": \"45°\"}}","_debug_options_count":4},{"id":7722,"question":"Vrai ou Faux ? 0,5 est égal à 1\/2.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"0,5 est la forme décimale de la fraction 1\/2. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":7723,"question":"Quel est le résultat de 25 × 4 ?","option_a":"100","option_b":"80","option_c":"120","option_d":"90","option_e":"","option_f":"","bonne_reponse":"a","explication":"25 × 4 = 100, car 25 × 4 = (20 × 4) + (5 × 4) = 80 + 20 = 100.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"100\", \"b\": \"80\", \"c\": \"120\", \"d\": \"90\"}}","_debug_options_count":4},{"id":7724,"question":"Vrai ou Faux ? Le périmètre d'un cercle se calcule avec la formule P = π × rayon.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"La formule du périmètre d'un cercle est P = 2 × π × rayon ou P = π × diamètre. La formule donnée est donc incorrecte.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4}]