Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
Bạn hãy xác thực địa chỉ email đăng ký nhé. Chi tiết xem tại đây
Bạn hãy xác thực địa chỉ email đăng ký nhé. Chi tiết xem tại đây
{"common":{"save":0,"post_id":"7667","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1558","post_id":"7667","mon_id":"1159414","chapter_id":"1159449","question":"<p>Trong các cách \u0111\u1eb7t tính d\u01b0\u1edbi \u0111ây, cách \u0111\u1eb7t nào là \u0111úng?<\/p>","options":["<strong>A.<\/strong> <span class=\"svgedit\"><svg height=\"140\" width=\"110\"> <g>\n<title><\/title>\n<rect fill=\"#ffd4aa\" height=\"142\" id=\"canvas_background\" width=\"112\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_5\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\n<title><\/title>\n<text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"20\" xml:space=\"preserve\" y=\"28.25\">82,232<\/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=\"5\" xml:space=\"preserve\" y=\"52.25\">+<\/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=\"20\" xml:space=\"preserve\" y=\"74.25\">8,7<\/text> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"9\" x2=\"99\" y1=\"93.25\" y2=\"93.25\"><\/line> <\/g> <\/svg><\/span>","<strong>B.<\/strong> <span class=\"svgedit\"><svg height=\"140\" width=\"110\"> <g>\n<title><\/title>\n<rect fill=\"#ffffaa\" height=\"142\" id=\"canvas_background\" width=\"112\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_5\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\n<title><\/title>\n<text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"20\" xml:space=\"preserve\" y=\"28.25\">82,232<\/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=\"5\" xml:space=\"preserve\" y=\"52.25\">+<\/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=\"47\" xml:space=\"preserve\" y=\"74.25\">8,7<\/text> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"9\" x2=\"99\" y1=\"93.25\" y2=\"93.25\"><\/line> <\/g> <\/svg><\/span>","<strong>C.<\/strong> <span class=\"svgedit\"><svg height=\"140\" width=\"110\"> <g>\n<title><\/title>\n<rect fill=\"#d4aaff\" height=\"142\" id=\"canvas_background\" width=\"112\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_5\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\n<title><\/title>\n<text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"20\" xml:space=\"preserve\" y=\"28.25\">82,232<\/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=\"5\" xml:space=\"preserve\" y=\"52.25\">+<\/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=\"34\" xml:space=\"preserve\" y=\"74.25\">8,7<\/text> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"9\" x2=\"99\" y1=\"93.25\" y2=\"93.25\"><\/line> <\/g> <\/svg><\/span>","<strong>D.<\/strong> <span class=\"svgedit\"><svg height=\"140\" width=\"110\"> <g>\n<title><\/title>\n<rect fill=\"#aaffd4\" height=\"142\" id=\"canvas_background\" width=\"112\" 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>\n<title><\/title>\n<text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"20\" xml:space=\"preserve\" y=\"28.25\">82,232<\/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=\"5\" xml:space=\"preserve\" y=\"52.25\">+<\/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=\"60\" xml:space=\"preserve\" y=\"74.25\">8,7<\/text> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"9\" x2=\"99\" y1=\"93.25\" y2=\"93.25\"><\/line> <\/g> <\/svg><\/span>"],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn <strong>C.<\/strong> <span class=\"svgedit\"><svg height=\"140\" width=\"110\"> <g><title><\/title><rect fill=\"#d4aaff\" height=\"142\" id=\"canvas_background\" width=\"112\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_5\" 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=\"20\" xml:space=\"preserve\" y=\"28.25\">82,232<\/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=\"5\" xml:space=\"preserve\" y=\"52.25\">+<\/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=\"34\" xml:space=\"preserve\" y=\"74.25\">8,7<\/text> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"9\" x2=\"99\" y1=\"93.25\" y2=\"93.25\"><\/line> <\/g> <\/svg><\/span>.<\/p><p>- Mu\u1ed1n c\u1ed9ng hai s\u1ed1 th\u1eadp phân ta làm nh\u01b0 sau:<br \/>+ Vi\u1ebft s\u1ed1 h\u1ea1ng này d\u01b0\u1edbi s\u1ed1 h\u1ea1ng kia sao cho các ch\u1eef s\u1ed1 \u1edf cùng m\u1ed9t hàng \u0111\u1eb7t th\u1eb3ng c\u1ed9t v\u1edbi nhau.<br \/>+ C\u1ed9ng nh\u01b0 c\u1ed9ng các s\u1ed1 t\u1ef1 nhiên.<br \/>+ Vi\u1ebft d\u1ea5u ph\u1ea9y \u1edf c\u1ed9t th\u1eb3ng c\u1ed9t v\u1edbi các d\u1ea5u ph\u1ea9y c\u1ee7a các s\u1ed1 h\u1ea1ng.<br \/>Nh\u01b0 v\u1eady cách \u0111\u1eb7t tính \u1edf hình <strong>C<\/strong> \u0111úng.<\/p>","type":"choose_img","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-09-17 02:08:21"},{"id":"1560","post_id":"7667","mon_id":"1159414","chapter_id":"1159449","question":"<p>3,5 + 4,8 = <\/p>","options":["<strong>A.<\/strong> 8,3","<strong>B.<\/strong> 8,03","<strong>C.<\/strong> 3,98","<strong>D.<\/strong> 3,89"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 8,3.<\/span><\/p><p> <span style=\"color:#16a085;\"><span class=\"svgedit\"><svg height=\"140\" width=\"100\"> <g><title><\/title><rect fill=\"#aaffaa\" height=\"142\" id=\"canvas_background\" width=\"102\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_6\" 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=\"33\" xml:space=\"preserve\" y=\"29.25\">3,5<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"normal\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"33\" xml:space=\"preserve\" y=\"76.25\">4,8<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"8\" xml:space=\"preserve\" y=\"53.25\">+<\/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=\"33\" xml:space=\"preserve\" y=\"124.25\">8,3<\/text> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"20\" x2=\"80\" y1=\"89.25\" y2=\"89.25\"><\/line> <\/g> <\/svg><\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-17 02:10:58","option_type":"txt","len":0},{"id":"1562","post_id":"7667","mon_id":"1159414","chapter_id":"1159449","question":"<p>8,9 + 75 =<\/p>","options":["<strong>A.<\/strong> 164","<strong>B.<\/strong> 16,4","<strong>C.<\/strong> 8,39","<strong>D.<\/strong> 83,9"],"correct":"4","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 83,9.<\/span><\/p><p><span class=\"svgedit\"><svg height=\"140\" width=\"120\"> <g><title><\/title><rect fill=\"#ffffaa\" height=\"142\" id=\"canvas_background\" width=\"122\" 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=\"37\" xml:space=\"preserve\" y=\"29.25\">8,9<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"normal\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"24\" xml:space=\"preserve\" y=\"73.25\">75<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"1\" xml:space=\"preserve\" y=\"44.25\">+<\/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=\"24\" xml:space=\"preserve\" y=\"112.25\">83,9<\/text> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"14\" x2=\"82\" y1=\"83.25\" y2=\"83.25\"><\/line> <\/g> <\/svg><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-17 02:14:22","option_type":"txt","len":0}]}