Đề-xi-mét vuông, mét vuông, mi-li-mét vuông

Home Lớp 4 Toán lớp 4 - Sách Kết nối tri thức Bài 18: Đề-xi-mét vuông, mét vuông, mi-li-mét vuôngBài tập nâng cao

{"common":{"save":0,"post_id":"6791","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1368","post_id":"6791","mon_id":"1159012","chapter_id":"1159021","question":"Cho hình vuông và hình ch\u1eef nh\u1eadt có kích th\u01b0\u1edbc nh\u01b0 hình.<\/p><svg height=\"110\" width=\"400\"> <g><title><\/title><rect fill=\"#fff\" height=\"112\" id=\"canvas_background\" width=\"402\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><rect fill=\"#ffffaa\" height=\"80\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"80\" x=\"16.00001\" y=\"7.81\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"42.00001\" xml:space=\"preserve\" y=\"105.81001\">1 m<\/text> <rect fill=\"#aaffaa\" height=\"29\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"1.5\" width=\"211\" x=\"134.00002\" y=\"48.81\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"211.00001\" xml:space=\"preserve\" y=\"100.81001\">25 dm<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"348.00001\" xml:space=\"preserve\" y=\"68.81001\">4 dm<\/text> <\/g> <\/svg><\/span><\/p>Ch\u1ecdn câu \u0111úng.<\/p>","options":["A.<\/strong> Di\u1ec7n tích hình vuông l\u1edbn h\u01a1n di\u1ec7n tích hình ch\u1eef nh\u1eadt","B.<\/strong> Di\u1ec7n tích hình vuông nh\u1ecf h\u01a1n di\u1ec7n tích hình ch\u1eef nh\u1eadt","C.<\/strong> Di\u1ec7n tích hình vuông không b\u1eb1ng di\u1ec7n tích hình ch\u1eef nh\u1eadt","D.<\/strong> Di\u1ec7n tích hình vuông b\u1eb1ng di\u1ec7n tích hình ch\u1eef nh\u1eadt"],"correct":"4","level":"3","hint":"","answer":"Di\u1ec7n tích hình vuông là: 1 x 1 = 1 m²<\/p>Di\u1ec7n tích hình ch\u1eef nh\u1eadt là: 4 x 25 = 100 dm²<\/p>Vì 1 m² = 100 dm² nên di\u1ec7n tích hình vuông b\u1eb1ng di\u1ec7n tích hình ch\u1eef nh\u1eadt.<\/p>Ch\u1ecdn D.<\/strong> Di\u1ec7n tích hình vuông b\u1eb1ng di\u1ec7n tích hình ch\u1eef nh\u1eadt<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-10-29 01:40:15","option_type":"txt","len":3},{"id":"1374","post_id":"6791","mon_id":"1159012","chapter_id":"1159021","question":"\u0110i\u1ec1n các s\u1ed1 thích h\u1ee3p vào ô tr\u1ed1ng.<\/p>2cm² 800mm² = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> cm²<\/p>4dm² 200cm² = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> dm²<\/p>7m² 400dm² = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> m²<\/p>","options":"","correct":["[\"10\",\"6\",\"11\"]"],"level":"3","hint":"","answer":"2cm² 800mm² = 2cm² + 8cm² = 10<\/strong><\/span>cm²<\/p>4dm² 200cm² = 4dm² + 2dm² = 6<\/b><\/font>dm²<\/p>7m² 400dm² = 7m² + 4m² = 11<\/b><\/font>m²<\/p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là 10 ; 6 ; 11<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2023-10-29 01:53:48"},{"id":"1376","post_id":"6791","mon_id":"1159012","chapter_id":"1159021","question":"50m² 400dm² = <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/> m²<\/p>","options":["A.<\/strong> 504","B.<\/strong> 5400","C.<\/strong> 54","D.<\/strong> 540"],"correct":"3","level":"3","hint":"","answer":"50m² 400dm² <\/p>= 50m² + 400dm² <\/p>= 50m² + 4m² <\/p>= 54<\/strong><\/span>m²<\/p>Ch\u1ecdn C.<\/strong> 54<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-10-29 01:56:51","option_type":"txt","len":0}]}