Thực hành và trải nghiệm sử dụng máy tính cầm tay

Home Lớp 5 Toán lớp 5 - Sách Kết nối tri thức Bài 43. Thực hành và trải nghiệm sử dụng máy tính cầm tayBài tập trung bình

{"common":{"save":0,"post_id":"8379","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4289","post_id":"8379","mon_id":"1159414","chapter_id":"1159495","question":"S\u1eed d\u1ee5ng máy tính c\u1ea7m tay \u0111\u1ec3 tính t\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a 17 và 20<\/strong><\/span>.<\/p>","options":["A.<\/strong> 8,5%","B.<\/strong> 0,85%","C.<\/strong> 85%","D.<\/strong> 850%"],"correct":"3","level":"2","hint":"","answer":"Ch\u1ecdn C.<\/strong> 85%<\/span><\/p>L\u1ea7n l\u01b0\u1ee3t \u1ea5n các phím<\/p><svg height=\"60\" width=\"240\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"62\" id=\"canvas_background\" width=\"242\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_8\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <rect fill=\"#ffaaff\" height=\"48\" id=\"svg_1\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"29\" x=\"6.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#ffaaff\" height=\"48\" id=\"svg_2\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"29\" x=\"39.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#ffaaff\" height=\"48\" id=\"svg_3\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"29\" x=\"72.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#ffaaff\" height=\"48\" id=\"svg_4\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"29\" x=\"105.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#ffaaff\" height=\"48\" id=\"svg_5\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"29\" x=\"138.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#ffaaff\" height=\"48\" id=\"svg_6\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"29\" x=\"171.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#ffaaff\" height=\"48\" id=\"svg_7\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"29\" x=\"204.27778\" y=\"5.47222\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"13.27778\" xml:space=\"preserve\" y=\"38.47222\">1<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"46.27778\" xml:space=\"preserve\" y=\"38.47222\">7<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"82.27778\" xml:space=\"preserve\" y=\"37.47222\">:<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"113.27778\" xml:space=\"preserve\" y=\"38.47222\">2<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"146.27778\" xml:space=\"preserve\" y=\"38.47222\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"175.27778\" xml:space=\"preserve\" y=\"38.47222\">%<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"211.27778\" xml:space=\"preserve\" y=\"38.47222\">=<\/text> <line fill=\"none\" id=\"svg_9\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"80.27778\" x2=\"92.27778\" y1=\"30\" y2=\"30.47222\"><\/line> <\/g> <\/svg><\/span><\/p>Màn hình xu\u1ea5t hi\u1ec7n k\u1ebft qu\u1ea3 85<\/strong><\/span>. V\u1eady t\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a 17 và 20 là 85%<\/strong><\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-30 08:38:46","option_type":"txt","len":0},{"id":"4290","post_id":"8379","mon_id":"1159414","chapter_id":"1159495","question":"S\u1eed d\u1ee5ng máy tính c\u1ea7m tay \u0111\u1ec3 tính t\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a 4,5 và 15<\/strong><\/span>.<\/p>","options":["A.<\/strong> 0,3%","B.<\/strong> 30%","C.<\/strong> 300%","D.<\/strong> 3%"],"correct":"2","level":"2","hint":"","answer":"Ch\u1ecdn B.<\/strong> 30%<\/span><\/p>L\u1ea7n l\u01b0\u1ee3t \u1ea5n các phím<\/p><svg height=\"60\" width=\"245\"> <g><title><\/title><rect fill=\"#fff\" height=\"62\" id=\"canvas_background\" width=\"247\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_2\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><rect fill=\"#aaaaff\" height=\"49\" id=\"svg_1\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"4.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#aaaaff\" height=\"49\" id=\"svg_3\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"34.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#aaaaff\" height=\"49\" id=\"svg_4\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"64.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#aaaaff\" height=\"49\" id=\"svg_5\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"94.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#aaaaff\" height=\"49\" id=\"svg_6\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"124.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#aaaaff\" height=\"49\" id=\"svg_7\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"154.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#aaaaff\" height=\"49\" id=\"svg_8\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"184.27778\" y=\"5.47222\"><\/rect> <rect fill=\"#aaaaff\" height=\"49\" id=\"svg_9\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"214.27778\" y=\"5.47222\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"10.77778\" xml:space=\"preserve\" y=\"38.47222\">4<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"42.77778\" xml:space=\"preserve\" y=\"38.47222\">.<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"69.77778\" xml:space=\"preserve\" y=\"38.47222\">5<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"102.77778\" xml:space=\"preserve\" y=\"38.47222\">:<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"129.77778\" xml:space=\"preserve\" y=\"38.47222\">1<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"160.77778\" xml:space=\"preserve\" y=\"38.47222\">5<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_18\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"187.77778\" xml:space=\"preserve\" y=\"38.47222\">%<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"219.77778\" xml:space=\"preserve\" y=\"38.47222\">=<\/text> <line fill=\"none\" id=\"svg_20\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"3\" x1=\"100\" x2=\"115\" y1=\"31.47222\" y2=\"31.47222\"><\/line> <\/g> <\/svg><\/span><\/p>Màn hình xu\u1ea5t hi\u1ec7n k\u1ebft qu\u1ea3 30<\/strong><\/span>. V\u1eady t\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a 4,5 và 15 là 30%<\/strong><\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-30 08:47:03","option_type":"txt","len":0},{"id":"4291","post_id":"8379","mon_id":"1159414","chapter_id":"1159495","question":"M\u1ed9t con búp bê có giá g\u1ed1c là 160 000 \u0111\u1ed3ng, \u0111\u01b0\u1ee3c gi\u1ea3m giá 40%. S\u1eed d\u1ee5ng máy tính c\u1ea7m tay \u0111\u1ec3 tính s\u1ed1 ti\u1ec1n \u0111\u01b0\u1ee3c gi\u1ea3m.<\/p>","options":["A.<\/strong> 64 000 \u0111\u1ed3ng","B.<\/strong> 40 000 \u0111\u1ed3ng","C.<\/strong> 16 000 \u0111\u1ed3ng","D.<\/strong> 32 000 \u0111\u1ed3ng"],"correct":"1","level":"2","hint":"","answer":"Ch\u1ecdn A.<\/strong> 64 000 \u0111\u1ed3ng<\/span><\/p>L\u1ea7n l\u01b0\u1ee3t \u1ea5n các phím<\/p><svg height=\"50\" width=\"330\"> <g><title><\/title><rect fill=\"#fff\" height=\"52\" id=\"canvas_background\" width=\"332\" 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=\"#95ed7d\" height=\"41\" id=\"svg_1\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"2.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_2\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"32.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_3\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"62.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_4\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"92.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_5\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"122.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_6\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"152.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_7\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"182.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_8\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"212.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_9\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"242.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_10\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"272.27778\" y=\"3.47222\"><\/rect> <rect fill=\"#95ed7d\" height=\"41\" id=\"svg_11\" rx=\"8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"26\" x=\"302.27778\" y=\"3.47222\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_20\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"8.27778\" xml:space=\"preserve\" y=\"32.47222\">1<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"38.27778\" xml:space=\"preserve\" y=\"32.47222\">6<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"68.27778\" xml:space=\"preserve\" y=\"32.47222\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_23\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"98.27778\" xml:space=\"preserve\" y=\"32.47222\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"128.27778\" xml:space=\"preserve\" y=\"32.47222\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_25\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"158.27778\" xml:space=\"preserve\" y=\"32.47222\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_26\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"188.27778\" xml:space=\"preserve\" y=\"32.47222\">x<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_27\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"218.27778\" xml:space=\"preserve\" y=\"32.47222\">4<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_28\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"248.27778\" xml:space=\"preserve\" y=\"32.47222\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_29\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"274.27778\" xml:space=\"preserve\" y=\"32.47222\">%<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" font-weight=\"bold\" id=\"svg_30\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"308.27778\" xml:space=\"preserve\" y=\"32.47222\">=<\/text> <\/g> <\/svg><\/span><\/p>Màn hình xu\u1ea5t hi\u1ec7n k\u1ebft qu\u1ea3 64 000<\/strong><\/span>.<\/p>V\u1eady s\u1ed1 ti\u1ec1n \u0111\u01b0\u1ee3c gi\u1ea3m là 64 000 \u0111\u1ed3ng<\/strong><\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-30 08:50:45","option_type":"txt","len":1}]}