Phép trừ số thập phân

Home Lớp 5 Toán lớp 5 - Sách Kết nối tri thức Bài 20. Phép trừ số thập phânBài tập cơ bản

{"common":{"save":0,"post_id":"7670","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1616","post_id":"7670","mon_id":"1159414","chapter_id":"1159449","question":"<p>Cách \u0111\u1eb7t phép tính nào <strong>\u0111úng<\/strong>?<\/p>","options":["<strong>A.<\/strong> <span class=\"svgedit\"><svg height=\"80\" width=\"100\"> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"82\" id=\"canvas_background\" width=\"102\" 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<g id=\"svg_5\"> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.99999\" xml:space=\"preserve\" y=\"25.43181\">49,231<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.99999\" xml:space=\"preserve\" y=\"59.43181\">4,8<\/text> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"12\" x2=\"22.99999\" y1=\"31.43181\" y2=\"31.43181\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"16.99999\" x2=\"93.99999\" y1=\"67.43181\" y2=\"67.43181\"><\/line> <\/g> <\/g> <\/svg><\/span>","<strong>B.<\/strong> <span class=\"svgedit\"><svg height=\"80\" width=\"100\"> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"82\" 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>\n<title><\/title>\n<text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.99999\" xml:space=\"preserve\" y=\"25.43181\">49,231<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"36.99999\" xml:space=\"preserve\" y=\"59.43181\">4,8<\/text> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"12\" x2=\"22.99999\" y1=\"31.43181\" y2=\"31.43181\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"16.99999\" x2=\"93.99999\" y1=\"67.43181\" y2=\"67.43181\"><\/line> <\/g> <\/svg><\/span>","<strong>C.<\/strong> <span class=\"svgedit\"><svg height=\"80\" width=\"100\"> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"82\" 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>\n<title><\/title>\n<text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.99999\" xml:space=\"preserve\" y=\"25.43181\">49,231<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"50.99999\" xml:space=\"preserve\" y=\"59.43181\">4,8<\/text> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"12\" x2=\"22.99999\" y1=\"31.43181\" y2=\"31.43181\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"16.99999\" x2=\"93.99999\" y1=\"67.43181\" y2=\"67.43181\"><\/line> <\/g> <\/svg><\/span>","<strong>D.<\/strong> <span class=\"svgedit\"><svg height=\"80\" width=\"100\"> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"82\" 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>\n<title><\/title>\n<text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.99999\" xml:space=\"preserve\" y=\"25.43181\">49,231<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"57.99999\" xml:space=\"preserve\" y=\"59.43181\">4,8<\/text> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"12\" x2=\"22.99999\" y1=\"31.43181\" y2=\"31.43181\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"16.99999\" x2=\"93.99999\" y1=\"67.43181\" y2=\"67.43181\"><\/line> <\/g> <\/svg><\/span>"],"correct":"2","level":"1","hint":"<p>Mu\u1ed1n tr\u1eeb hai s\u1ed1 th\u1eadp phân ta làm nh\u01b0 sau:<br \/>- Vi\u1ebft s\u1ed1 tr\u1eeb bên d\u01b0\u1edbi s\u1ed1 b\u1ecb tr\u1eeb sao cho các ch\u1eef s\u1ed1 \u1edf cùng hàng \u0111\u1eb7t th\u1eb3ng c\u1ed9t v\u1edbi nhau.<br \/>- Tr\u1eeb nh\u01b0 tr\u1eeb hai s\u1ed1 t\u1ef1 nhiên.<br \/>- Vi\u1ebft d\u1ea5u ph\u1ea9y \u1edf hi\u1ec7u th\u1eb3ng c\u1ed9t v\u1edbi d\u1ea5u ph\u1ea9y c\u1ee7a s\u1ed1 b\u1ecb tr\u1eeb và s\u1ed1 tr\u1eeb.<\/p>","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"svgedit\"><svg height=\"80\" width=\"100\"> <g><title><\/title><rect fill=\"#fff\" height=\"82\" 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=\"20\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.99999\" xml:space=\"preserve\" y=\"25.43181\">49,231<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"36.99999\" xml:space=\"preserve\" y=\"59.43181\">4,8<\/text> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"12\" x2=\"22.99999\" y1=\"31.43181\" y2=\"31.43181\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"16.99999\" x2=\"93.99999\" y1=\"67.43181\" y2=\"67.43181\"><\/line> <\/g> <\/svg><\/span><\/span><\/p>","type":"choose_img","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-09-18 01:52:33"},{"id":"1618","post_id":"7670","mon_id":"1159414","chapter_id":"1159449","question":"<p>\u0110i\u1ec1n vào ch\u1ed7 ch\u1ea5m: 5,6 – 1,1= …<\/p>","options":["<strong>A.<\/strong> 4,5","<strong>B.<\/strong> 4,4","<strong>C.<\/strong> 3,5","<strong>D.<\/strong> 45"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 4,5<\/span><\/p><p><span class=\"svgedit\"><svg height=\"100\" width=\"70\"> <g><title><\/title><rect fill=\"#fff\" height=\"102\" id=\"canvas_background\" width=\"72\" 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><g id=\"svg_6\"> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25\" xml:space=\"preserve\" y=\"23.43181\">5,6<\/text> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"3\" x2=\"16\" y1=\"34\" y2=\"34.43181\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"17\" x2=\"66.99999\" y1=\"68.43181\" y2=\"68.43181\"><\/line> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"25\" xml:space=\"preserve\" y=\"58.43181\">1,1<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"25\" xml:space=\"preserve\" y=\"94.43181\">4,5<\/text> <\/g> <\/g> <\/svg><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-18 01:55:35","option_type":"txt","len":0},{"id":"1619","post_id":"7670","mon_id":"1159414","chapter_id":"1159449","question":"<p>\u0110i\u1ec1n vào ch\u1ed7 ch\u1ea5m: 8,3 – 4,5 = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/p>","options":"","correct":["[\"3,8\"]"],"level":"1","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"100\" width=\"80\"> <g><title><\/title><rect fill=\"#fff\" height=\"102\" id=\"canvas_background\" width=\"82\" 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=\"28\" xml:space=\"preserve\" y=\"22.43181\">8,3<\/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=\"28\" xml:space=\"preserve\" y=\"55.43181\">4,5<\/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=\"28\" xml:space=\"preserve\" y=\"93.43181\">3,8<\/text> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"4\" x2=\"17\" y1=\"32.43181\" y2=\"32.43181\"><\/line> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"16\" x2=\"67.99999\" y1=\"65.43181\" y2=\"65.43181\"><\/line> <\/g> <\/svg><\/span><\/p><p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n là <span style=\"color:#16a085;\"><strong>3,8<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-09-18 01:56:06"}]}