Tỉ lệ bản đồ và ứng dụng

Home Lớp 5 Toán lớp 5 - Sách Kết nối tri thức Bài 37. Tỉ lệ bản đồ và ứng dụngBài tập nâng cao

{"common":{"save":0,"post_id":"8362","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4126","post_id":"8362","mon_id":"1159414","chapter_id":"1159495","question":"Trên b\u1ea3n \u0111\u1ed3 t\u1ec9 l\u1ec7 1 : 500, m\u1ed9t m\u1ea3nh \u0111\u1ea5t hình ch\u1eef nh\u1eadt có chi\u1ec1u dài là 8 cm và chi\u1ec1u r\u1ed9ng là 6 cm. Di\u1ec7n tích th\u1ef1c t\u1ebf c\u1ee7a m\u1ea3nh \u0111\u1ea5t \u0111ó là bao nhiêu mét vuông?<\/p>","options":["A.<\/strong> 4800 m²","B.<\/strong> 2400 m²","C.<\/strong> 3600 m²","D.<\/strong> 1200 m²"],"correct":"4","level":"3","hint":"","answer":"<\/span>Ch\u1ecdn D.<\/strong> 1200 m²<\/span><\/p>Trên th\u1ef1c t\u1ebf, chi\u1ec1u dài c\u1ee7a m\u1ea3nh \u0111\u1ea5t là:<\/p>8 x 500 = 4000 (cm)<\/p>Trên th\u1ef1c t\u1ebf, chi\u1ec1u r\u1ed9ng c\u1ee7a m\u1ea3nh \u0111\u1ea5t là:<\/p>6 x 500 = 3000 (cm)<\/p>\u0110\u1ed5i: 4000 cm = 40 m; 3000 cm = 30 m.<\/p>Trên th\u1ef1c t\u1ebf, di\u1ec7n tích c\u1ee7a m\u1ea3nh \u0111\u1ea5t là:<\/p>40 x 30 = 1200 (m²)<\/span><\/strong><\/p>\u0110áp s\u1ed1: 1200 m²<\/b><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-26 07:50:53","option_type":"txt","len":1},{"id":"4128","post_id":"8362","mon_id":"1159414","chapter_id":"1159495","question":"M\u1ed9t th\u1eeda ru\u1ed9ng hình vuông có chu vi là 96 m. Trên b\u1ea3n \u0111\u1ed3 t\u1ec9 l\u1ec7 1 : 1000, \u0111\u1ed9 dài c\u1ea1nh c\u1ee7a th\u1eeda ru\u1ed9ng \u0111ó là bao nhiêu x\u0103ng-ti-mét?<\/p>","options":["A.<\/strong> 24 cm","B.<\/strong> 2,4 cm","C.<\/strong> 1,2 cm","D.<\/strong> 4,8 cm"],"correct":"2","level":"3","hint":"","answer":"Ch\u1ecdn B.<\/strong> 2,4 cm<\/span><\/p>\u0110\u1ed9 dài c\u1ea1nh c\u1ee7a th\u1eeda ru\u1ed9ng trên th\u1ef1c t\u1ebf là:<\/p>96 : 4 = 24 (m)<\/p>\u0110\u1ed5i: 24 m = 2400 cm<\/p>Trên b\u1ea3n \u0111\u1ed3 t\u1ec9 l\u1ec7 1 : 1000, \u0111\u1ed9 dài c\u1ea1nh c\u1ee7a th\u1eeda ru\u1ed9ng \u0111ó là:<\/p>2400 : 1000 = 2,4 (cm)<\/span><\/p>\u0110áp s\u1ed1: 2,4 cm<\/strong><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-26 08:00:39","option_type":"txt","len":0},{"id":"4131","post_id":"8362","mon_id":"1159414","chapter_id":"1159495","question":"N\u1ed1i các \u0111\u1ed9 dài (\u0111\u01a1n v\u1ecb cm) trên b\u1ea3n \u0111\u1ed3 t\u1ec9 l\u1ec7 1 : 2000 v\u1edbi \u0111\u1ed9 dài t\u01b0\u01a1ng \u1ee9ng trên th\u1ef1c t\u1ebf (\u0111\u01a1n v\u1ecb m).<\/p>","options":[["5 cm \u1ee9ng v\u1edbi","3,5 cm \u1ee9ng v\u1edbi ","6 cm \u1ee9ng v\u1edbi"],["70 m","120 m","100 m"],["100 m","70 m","120 m"]],"correct":[1,2,0],"level":"3","hint":"","answer":"5 cm \u1ee9ng v\u1edbi<\/span><\/strong> <\/span>5 x 2000 = 10 000 cm = 100 m<\/span><\/strong><\/p>3,5 cm \u1ee9ng v\u1edbi<\/strong> <\/span>3,5 x 2000 = 7000 cm = 70 m<\/strong><\/span><\/p>6 cm \u1ee9ng v\u1edbi<\/strong><\/span> <\/span>6 x 2000 = 12 000 cm = 120 m<\/strong><\/span><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"131","test":"0","date":"2025-01-26 08:09:03"}]}