Nhân số có bốn chữ số với số có một chữ số

Home Lớp 3 Toán lớp 3 - Sách Kết nối tri thức Bài 56: Nhân số có bốn chữ số với số có một chữ sốBài tập nâng cao

{"common":{"save":0,"post_id":"5915","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1424","post_id":"5915","mon_id":"1158530","chapter_id":"1158696","question":"Tìm x, bi\u1ebft  x : 3 + 1560 = 4120<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/gia-dinh\/anh-em-2.png\" \/><\/div>\u0110áp s\u1ed1:   x = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/span><\/p>","options":"","correct":["[\"7680\"]"],"level":"3","hint":"","answer":"x : 3 + 1560 = 4120<\/p>x : 3             = 4120 – 1560<\/p>x : 3             = 2560<\/p>x                  = 2560 x 3<\/p>x                  = 7680<\/p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n là    7680<\/strong><\/span><\/p>\u0110\u1eb7t tính<\/span><\/p><svg height=\"120\" width=\"200\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"122\" id=\"canvas_background\" width=\"202\" 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> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"22\" xml:space=\"preserve\" y=\"24.25\">4120<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"3\" xml:space=\"preserve\" y=\"33.25\">_<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"21\" xml:space=\"preserve\" y=\"65.25\">1560<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"23\" xml:space=\"preserve\" y=\"104.25\">2560<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"128\" xml:space=\"preserve\" y=\"22.25\">2560<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"113\" xml:space=\"preserve\" y=\"44.25\">x<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_7\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"168\" xml:space=\"preserve\" y=\"68.25\">3<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_8\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"130\" xml:space=\"preserve\" y=\"105.25\">7680<\/text> <line fill=\"none\" id=\"svg_9\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"16\" x2=\"81\" y1=\"78.25\" y2=\"78\"><\/line> <line fill=\"none\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"123\" x2=\"188\" y1=\"78.25\" y2=\"78\"><\/line> <\/g> <\/svg><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2022-06-14 10:48:49"},{"id":"1426","post_id":"5915","mon_id":"1158530","chapter_id":"1158696","question":"Tìm x, bi\u1ebft x : 5 + 3300 = 5100<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/gia-dinh\/anh-em1.png\" \/><\/div>Tr\u1ea3 l\u1eddi:  x = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> <\/span><\/p>","options":"","correct":["[\"9000\"]"],"level":"3","hint":"","answer":"x : 5 + 3300 = 5100<\/p>x : 5             = 5100 – 3300<\/p>x : 5             = 1800<\/p>x                  = 1800 x 5<\/p>x                  = 9000<\/p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n là 9000<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2022-06-14 10:51:47"},{"id":"1427","post_id":"5915","mon_id":"1158530","chapter_id":"1158696","question":"Tìm x, bi\u1ebft x : 7 – 1200 = 115<\/p>","options":["A.<\/strong> x = 1315","B.<\/strong> x = 9205","C.<\/strong> x = 9502","D.<\/strong> x = 1513"],"correct":"2","level":"3","hint":"","answer":"x : 7 – 1200 = 115<\/p>x : 7             = 115 + 1200<\/p>x : 7             = 1315<\/p>x                  = 1315 x 7<\/p>x                  = 9205<\/p>\u0110áp án \u0111úng là B.<\/strong>   x = 9205<\/span><\/p>\u0110\u1eb7t tính<\/span><\/p><svg height=\"120\" width=\"200\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"122\" id=\"canvas_background\" width=\"202\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_4\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"41\" xml:space=\"preserve\" y=\"66.25\">115<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"7\" xml:space=\"preserve\" y=\"47.25\">+<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"29\" xml:space=\"preserve\" y=\"23.25\">1200<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"27\" xml:space=\"preserve\" y=\"105.25\">1315<\/text> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"22\" x2=\"88\" y1=\"73.25\" y2=\"73\"><\/line> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_7\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"176\" xml:space=\"preserve\" y=\"65.25\">7<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_8\" stroke=\"#000\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"115\" xml:space=\"preserve\" y=\"47.25\">x<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_9\" stroke=\"#000\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"137\" xml:space=\"preserve\" y=\"23.25\">1315<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#000\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"135\" xml:space=\"preserve\" y=\"105.25\">9205<\/text> <line fill=\"none\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"130\" x2=\"196\" y1=\"73.25\" y2=\"73\"><\/line> <\/g> <\/svg><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-15 02:15:42","option_type":"txt","len":1}]}