Quiz — Revision Arithmétiques.pdf

Question 1 sur 10 20:00

[{"id":38460,"question":"Quel est le résultat de l'opération suivante : 125 + 47 - 32 ?","option_a":"140","option_b":"130","option_c":"145","option_d":"150","option_e":"","option_f":"","bonne_reponse":"a","explication":"125 + 47 = 172, puis 172 - 32 = 140. Il faut respecter l'ordre des opérations (addition puis soustraction).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"140\", \"b\": \"130\", \"c\": \"145\", \"d\": \"150\"}}","_debug_options_count":4},{"id":38461,"question":"La division euclidienne de 123 par 5 donne un quotient de 24 et un reste de 3.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"5 × 24 = 120, et 123 - 120 = 3. La division euclidienne est correcte.","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":38462,"question":"Quel est le résultat de 3 × (4 + 5) - 2 ?","option_a":"23","option_b":"25","option_c":"21","option_d":"27","option_e":"","option_f":"","bonne_reponse":"c","explication":"D'abord, on calcule la parenthèse : 4 + 5 = 9. Puis 3 × 9 = 27, et enfin 27 - 2 = 25. Les priorités opératoires sont respectées.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"23\", \"b\": \"25\", \"c\": \"21\", \"d\": \"27\"}}","_debug_options_count":4},{"id":38463,"question":"Le nombre 1234 est divisible par 3.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Pour vérifier la divisibilité par 3, on additionne les chiffres : 1 + 2 + 3 + 4 = 10. 10 n'est pas divisible par 3, donc 1234 ne l'est pas non plus.","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},{"id":38464,"question":"Quel est le résultat de 0,75 × 8 ?","option_a":"6","option_b":"5,5","option_c":"7","option_d":"6,5","option_e":"","option_f":"","bonne_reponse":"a","explication":"0,75 × 8 = 6. On peut aussi voir 0,75 comme 3\/4, donc 3\/4 × 8 = 6.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"6\", \"b\": \"5,5\", \"c\": \"7\", \"d\": \"6,5\"}}","_debug_options_count":4},{"id":38465,"question":"Le nombre 120 est divisible par 5.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un nombre est divisible par 5 s'il se termine par 0 ou 5. 120 se termine par 0, donc il est divisible par 5.","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":38466,"question":"Quel est le résultat de 15 ÷ 3 + 2 × 4 ?","option_a":"11","option_b":"13","option_c":"9","option_d":"17","option_e":"","option_f":"","bonne_reponse":"a","explication":"D'abord, on effectue la division et la multiplication : 15 ÷ 3 = 5 et 2 × 4 = 8. Puis on additionne : 5 + 8 = 13.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"11\", \"b\": \"13\", \"c\": \"9\", \"d\": \"17\"}}","_debug_options_count":4},{"id":38467,"question":"Un nombre est divisible par 9 si la somme de ses chiffres est divisible par 9.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"C'est un critère de divisibilité bien connu. Par exemple, 81 est divisible par 9 car 8 + 1 = 9.","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":38468,"question":"Quel est le résultat de 2,5 × 4 - 1,5 ?","option_a":"7,5","option_b":"8,5","option_c":"9,5","option_d":"6,5","option_e":"","option_f":"","bonne_reponse":"b","explication":"D'abord, on multiplie : 2,5 × 4 = 10. Puis on soustrait : 10 - 1,5 = 8,5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"7,5\", \"b\": \"8,5\", \"c\": \"9,5\", \"d\": \"6,5\"}}","_debug_options_count":4},{"id":38469,"question":"Le nombre 1001 est divisible par 7.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"1001 ÷ 7 = 143. On peut vérifier en multipliant 7 × 143 = 1001. Donc, 1001 est bien divisible par 7.","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}]