Tìm số trung bình cộng

Home Lớp 4 Toán lớp 4 - Sách Kết nối tri thức Bài 46 -Tìm số trung bình cộngBài tập trung bình

{"common":{"save":0,"post_id":"6878","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2034","post_id":"6878","mon_id":"1159012","chapter_id":"1159015","question":"S\u1ed1 h\u1ecdc sinh c\u1ee7a 4 l\u1edbp l\u1ea7n l\u01b0\u1ee3t là 34, 36, 40, 38. H\u1ecfi trung bình m\u1ed7i l\u1edbp có bao nhiêu h\u1ecdc sinh?<\/p>","options":["A.<\/strong> 37 (h\u1ecdc sinh)","B.<\/strong> 38 (h\u1ecdc sinh)","C.<\/strong> 39 (h\u1ecdc sinh)","D.<\/strong> 36 (h\u1ecdc sinh)"],"correct":"1","level":"2","hint":"","answer":"Trung bình m\u1ed7i l\u1edbp có s\u1ed1 h\u1ecdc sinh là:<\/p>(34 + 36 + 40 + 38) : 4 = 37 (h\u1ecdc sinh)<\/p>Ch\u1ecdn A.<\/strong> 37 (h\u1ecdc sinh)<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-12-17 04:37:37","option_type":"txt","len":2},{"id":"2059","post_id":"6878","mon_id":"1159012","chapter_id":"1159015","question":"Tìm s\u1ed1 trung bình c\u1ed9ng c\u1ee7a các s\u1ed1 90 ; 120 ; 390.<\/strong><\/span><\/p>","options":["A.<\/strong> 210","B.<\/strong> 300","C.<\/strong> 600","D.<\/strong> 200"],"correct":"4","level":"2","hint":"","answer":"(90 + 120 + 390) : 3<\/p>= 600 : 3<\/p>= 200<\/p>Ch\u1ecdn D.<\/strong> 200<\/span><\/p>","type":"choose","extra_type":"sheep","time":"0","user_id":"131","test":"0","date":"2023-12-27 01:39:31","option_type":"txt","len":0},{"id":"2065","post_id":"6878","mon_id":"1159012","chapter_id":"1159015","question":"S\u1ed1 cây tr\u1ed3ng \u0111\u01b0\u1ee3c c\u1ee7a 3 l\u1edbp 4A, 4B, 4C l\u1ea7n l\u01b0\u1ee3t là 12 cây, 10 cây, 17 cây. Tính s\u1ed1 cây trung bình tr\u1ed3ng \u0111\u01b0\u1ee3c c\u1ee7a c\u1ea3 ba l\u1edbp.<\/p>","options":["A.<\/strong> 12 (cây)","B.<\/strong> 39 (cây)","C.<\/strong> 14 (cây)","D.<\/strong> 13 (cây)"],"correct":"4","level":"2","hint":"","answer":"S\u1ed1 cây trung bình c\u1ee7a c\u1ea3 ba l\u1edbp là:<\/p>(12 + 10 + 17) : 3 = 13 (cây)<\/p>Ch\u1ecdn D.<\/strong> 13 (cây)<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-12-27 01:53:18","option_type":"txt","len":2}]}