Ôn tập hình học và đo lường

Home Lớp 4 Toán lớp 4 - Sách Kết nối tri thức Bài 71 - Ôn tập hình học và đo lườngBài tập cơ bản

{"common":{"save":0,"post_id":"6884","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2812","post_id":"6884","mon_id":"1159012","chapter_id":"1159027","question":"Vi\u1ebft tên góc tù trong hình.<\/p><svg height=\"210\" width=\"260\"> <g><title><\/title><rect fill=\"#aaffd4\" height=\"212\" id=\"canvas_background\" width=\"262\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_9\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><path d=\"m237.42,181.18376l0,-161.00002l-218,161.00002l218,0z\" fill=\"#fff\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"113\" x2=\"237\" y1=\"113.25\" y2=\"181.25\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"237\" xml:space=\"preserve\" y=\"202.25\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"5\" xml:space=\"preserve\" y=\"202.25\">B<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"240\" xml:space=\"preserve\" y=\"23.25\">C<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"96\" xml:space=\"preserve\" y=\"109.25\">D<\/text> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> Góc tù \u0111\u1ec9nh A; c\u1ea1nh AB, AC.","B.<\/strong> Góc tù \u0111\u1ec9nh D; c\u1ea1nh DB, DA.","C.<\/strong> Góc tù \u0111\u1ec9nh C; c\u1ea1nh CB, CA.","D.<\/strong> Góc tù \u0111\u1ec9nh B; c\u1ea1nh BA, BC."],"correct":"2","level":"1","hint":"","answer":"Ch\u1ecdn B.<\/strong> Góc tù \u0111\u1ec9nh D; c\u1ea1nh DB, DA.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-14 05:00:49","option_type":"txt","len":2},{"id":"2813","post_id":"6884","mon_id":"1159012","chapter_id":"1159027","question":"5 y\u1ebfn = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> kg.<\/p>100 kg = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> y\u1ebfn.<\/p>","options":"","correct":["[\"50\",\"10\"]"],"level":"1","hint":"1 y\u1ebfn = 10 kg.<\/p>","answer":"5 y\u1ebfn = 50 <\/span><\/strong>kg  (5 x 10 = 50).<\/p>100 kg = 10 <\/strong><\/span>y\u1ebfn  (100 : 10 = 10).<\/p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là 50<\/strong><\/span> và 10<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-02-14 05:03:11"},{"id":"2814","post_id":"6884","mon_id":"1159012","chapter_id":"1159027","question":"7 t\u1ea1 = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> kg.<\/p>1900 kg = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> t\u1ea1.<\/p>","options":"","correct":["[\"700\",\"19\"]"],"level":"1","hint":"1 t\u1ea1 = 100 kg<\/p>","answer":"7 t\u1ea1 = 700 <\/strong><\/span>kg (7 x 100 = 700).<\/p>1900 kg = 19 <\/strong><\/span>t\u1ea1 (1900 : 100 = 19).<\/p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là 700 <\/strong><\/span>và 19<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-02-14 05:05:01"}]}