{"id":19422,"date":"2025-07-07T06:35:04","date_gmt":"2025-07-06T23:35:04","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=19422"},"modified":"2025-07-07T06:35:43","modified_gmt":"2025-07-06T23:35:43","slug":"giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/","title":{"rendered":"Gi\u00fap b\u00e9 h\u1ecdc d\u00e3y s\u1ed1 la m\u00e3 1 \u0111\u1ebfn 20 c\u1ef1c \u0111\u01a1n gi\u1ea3n v\u1edbi quy t\u1eafc d\u1ec5 hi\u1ec3u"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Gioi_thieu_day_du_loat_1_den_20_cua_La_Ma\" >Gi\u1edbi thi\u1ec7u \u0111\u1ea7y \u0111\u1ee7 lo\u1ea1t 1 \u0111\u1ebfn 20 c\u1ee7a La M\u00e3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Huong_dan_ve_cach_doc_cac_so_La_Ma_1_den_20_de_hieu\" >H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch \u0111\u1ecdc c\u00e1c s\u1ed1 La M\u00e3 1 \u0111\u1ebfn 20 d\u1ec5 hi\u1ec3u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Huong_dan_cac_meo_de_viet_so_La_Ma_tu_1_%E2%80%93_20_theo_cac_quy_tac_don_gian\" >H\u01b0\u1edbng d\u1eabn c\u00e1c m\u1eb9o \u0111\u1ec3 vi\u1ebft s\u1ed1 La M\u00e3 t\u1eeb 1 &#8211; 20 theo c\u00e1c quy t\u1eafc \u0111\u01a1n gi\u1ea3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Cac_loai_bai_tap_tren_chuoi_La_Ma_tu_1_den_20_la_pho_bien\" >C\u00e1c lo\u1ea1i b\u00e0i t\u1eadp tr\u00ean chu\u1ed7i La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20 l\u00e0 ph\u1ed5 bi\u1ebfn<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Mau_1_Doc_cac_so_La_Ma\" >M\u1eabu 1: \u0110\u1ecdc c\u00e1c s\u1ed1 La M\u00e3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Mau_2_Xem_dong_ho_voi_so_La_Ma\" >M\u1eabu 2: Xem \u0111\u1ed3ng h\u1ed3 v\u1edbi s\u1ed1 La M\u00e3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Mau_3_Viet_so_La_Ma_theo_yeu_cau\" >M\u1eabu 3: Vi\u1ebft s\u1ed1 La M\u00e3 theo y\u00eau c\u1ea7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Mau_4_Tao_so_La_Ma_bang_cach_sap_xep_hoac_di_chuyen_tran_dau\" >M\u1eabu 4: T\u1ea1o s\u1ed1 La M\u00e3 b\u1eb1ng c\u00e1ch s\u1eafp x\u1ebfp ho\u1eb7c di chuy\u1ec3n tr\u1eadn \u0111\u1ea5u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Mau_5_So_sanh_cac_so\" >M\u1eabu 5: So s\u00e1nh c\u00e1c s\u1ed1<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Tom_tat_mot_so_bai_tap_tren_so_1_den_20_tu_co_ban_den_nang_cao\" >T\u00f3m t\u1eaft m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp tr\u00ean s\u1ed1 1 \u0111\u1ebfn 20 t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_1\" >B\u00e0i t\u1eadp 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_2\" >B\u00e0i t\u1eadp 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_3\" >B\u00e0i t\u1eadp 3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_4\" >B\u00e0i t\u1eadp 4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_5\" >B\u00e0i t\u1eadp 5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_6\" >B\u00e0i t\u1eadp 6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_7\" >B\u00e0i t\u1eadp 7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_8\" >B\u00e0i t\u1eadp 8<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Bai_tap_9\" >B\u00e0i t\u1eadp 9<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.ckconitsha.com\/vn\/giup-be-hoc-day-so-la-ma-1-den-20-cuc-don-gian-voi-quy-tac-de-hieu\/#Cach_hoc_nguoi_La_Ma_tu_1_den_20_hieu_qua\" >C\u00e1ch h\u1ecdc ng\u01b0\u1eddi La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20 hi\u1ec7u qu\u1ea3<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>S\u1ed1 La M\u00e3 1 \u0111\u1ebfn 20 \u0111\u01b0\u1ee3c coi l\u00e0 c\u00e1c s\u1ed1 c\u01a1 b\u1ea3n ph\u1ed5 bi\u1ebfn trong c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc, b\u00e0i ki\u1ec3m tra v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. \u0110\u1ec3 gi\u00fap con b\u1ea1n h\u1ecdc c\u00e1c chu\u1ed7i n\u00e0y \u0111\u01a1n gi\u1ea3n h\u01a1n, vui l\u00f2ng tham kh\u1ea3o b\u00e0i vi\u1ebft sau \u0111\u00e2y c\u1ee7a Kh\u1ec9.<\/p>\n<p>                                                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img_default\/monkey3.png\" alt=\"\"><\/p>\n<p class=\"title\">H\u00e0ng tri\u1ec7u tr\u1ebb em \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng ng\u00f4n ng\u1eef c\u1ee7a ch\u00fang th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp c\u1ee7a kh\u1ec9<\/p>\n<p class=\"description\">\u0110\u0103ng k\u00fd ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 tuy\u1ebfn h\u1ecdc h\u1ecdc cho tr\u1ebb em.<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra t\u00ean \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a b\u1ea1n *Vui l\u00f2ng ki\u1ec3m tra s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Gioi_thieu_day_du_loat_1_den_20_cua_La_Ma\"><\/span>Gi\u1edbi thi\u1ec7u \u0111\u1ea7y \u0111\u1ee7 lo\u1ea1t 1 \u0111\u1ebfn 20 c\u1ee7a La M\u00e3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">S\u1ed1 La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20 xu\u1ea5t hi\u1ec7n r\u1ea5t ph\u1ed5 bi\u1ebfn trong cu\u1ed9c s\u1ed1ng. V\u00e0 nh\u1eefng con s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng ho\u00e0n to\u00e0n tr\u00ean c\u00e1c k\u00fd t\u1ef1 c\u01a1 b\u1ea3n v\u00e0 c\u00e1c nh\u00f3m \u0111\u1eb7c bi\u1ec7t. Theo \u0111\u00f3, b\u1ea3ng s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 20 l\u00e0 m\u00e3 nh\u01b0 sau:<\/p>\n<table style=\"border-collapse: collapse;width: 100%;background-color: #fbeeb8;margin-left: auto;margin-right: auto\">\n<tr>\n<td>\n<p dir=\"ltr\">1<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">T\u00d4I<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">6<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Vi m\u00f4<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">11<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">XI<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">16<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">XVI<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">2<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Ii<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">7<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Vii<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">12<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">XII<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">17<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Xvii<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">3<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Iii<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">8<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Viii<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">13<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">XIII<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">18<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Xviii<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">4<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Iv<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">9<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Ix<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">14<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">XIV<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">19<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">XIX<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">5<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">V<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">10<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">X<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">15<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">XV<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">20<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Xx<\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Huong_dan_ve_cach_doc_cac_so_La_Ma_1_den_20_de_hieu\"><\/span>H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch \u0111\u1ecdc c\u00e1c s\u1ed1 La M\u00e3 1 \u0111\u1ebfn 20 d\u1ec5 hi\u1ec3u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Th\u00f4ng qua s\u1ed1 1 \u0111\u1ebfn 20 c\u1ee7a La M\u00e3, tr\u1ebb em c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u1ecdc nh\u1eefng con s\u1ed1 n\u00e0y. B\u1edfi v\u00ec c\u00e1ch \u0111\u1ecdc c\u00e1c con s\u1ed1 r\u1ea5t \u0111\u01a1n gi\u1ea3n nh\u01b0 s\u1ed1 t\u1ef1 nhi\u00ean, ch\u1ec9 h\u00e0ng ch\u1ee5c v\u00e0 \u0111\u01a1n v\u1ecb.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/1-so-la-ma-1-den-20.jpg\" alt=\"C\u00e1c quy t\u1eafc \u0111\u1ec3 \u0111\u1ecdc c\u00e1c s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 20 (Ngu\u1ed3n h\u00ecnh \u1ea3nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Khi \u0111\u1ecdc, b\u1ecdn tr\u1ebb c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn m\u1ed9t s\u1ed1 quy t\u1eafc nh\u01b0:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">T\u00f4i \u0111\u1ee9ng tr\u01b0\u1edbc v ho\u1eb7c \u0111\u1ee9ng tr\u01b0\u1edbc m\u1eb7t x<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">V\u1edbi c\u00e1c s\u1ed1, t\u1eeb tr\u00e1i sang ph\u1ea3i, gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c ch\u1eef s\u1ed1 gi\u1ea3m<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Do \u0111\u00f3, tr\u1ebb em s\u1ebd \u0111\u1ecdc h\u00e0ng ch\u1ee5c s\u1ed1 tr\u01b0\u1edbc, sau \u0111\u00f3 \u0111\u1ecdc s\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, b\u1ea1n ch\u1ec9 c\u1ea7n \u0111\u1ecdc l\u00e0 s\u1ed1 t\u1eeb l\u00e0 m\u1ed9t, hai, ba &#8230;. hai m\u01b0\u01a1i.<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Huong_dan_cac_meo_de_viet_so_La_Ma_tu_1_%E2%80%93_20_theo_cac_quy_tac_don_gian\"><\/span>H\u01b0\u1edbng d\u1eabn c\u00e1c m\u1eb9o \u0111\u1ec3 vi\u1ebft s\u1ed1 La M\u00e3 t\u1eeb 1 &#8211; 20 theo c\u00e1c quy t\u1eafc \u0111\u01a1n gi\u1ea3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Khi vi\u1ebft c\u00e1c s\u1ed1 La M\u00e3 1 &#8211; 20, tr\u1ebb em c\u1ea7n nh\u1edb c\u00e1c ghi ch\u00fa sau:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/2a-so-la-ma-1-den-20.jpg\" alt=\"H\u01b0\u1edbng d\u1eabn con b\u1ea1n c\u00e1ch vi\u1ebft s\u1ed1 La M\u00e3 1 \u0111\u1ebfn 20 (Ngu\u1ed3n h\u00ecnh \u1ea3nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1eed d\u1ee5ng c\u00e1c k\u00fd t\u1ef1 c\u01a1 b\u1ea3n nh\u01b0 I, V v\u00e0 X \u0111\u1ec3 ghi s\u1ed1<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">K\u00fd t\u1ef1 x ho\u1eb7c t\u00f4i c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i 2-3 l\u1ea7n v\u00e0 c\u00e1c k\u00fd t\u1ef1 n\u00e0y s\u1ebd l\u1eb7p l\u1ea1i kh\u00f4ng qu\u00e1 3 l\u1ea7n v\u00e0 c\u00e1c s\u1ed1 n\u00e0y s\u1ebd hi\u1ec3n th\u1ecb gi\u00e1 tr\u1ecb g\u1ea5p 2-3 l\u1ea7n l\u1ea7n l\u1eb7p l\u1ea1i. V\u00e0 ch\u1eef V ch\u1ec9 \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i m\u1ed9t l\u1ea7n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ngo\u00e0i c\u00e1c k\u00fd t\u1ef1 c\u01a1 b\u1ea3n, c\u00e1c s\u1ed1 t\u1eeb I \u0111\u1ebfn XX c\u0169ng s\u1eed d\u1ee5ng c\u00e1c nh\u00f3m \u0111\u1eb7c bi\u1ec7t. \u0110\u00f3 l\u00e0 IV ho\u1eb7c IX. C\u00e1c nh\u00f3m k\u00fd t\u1ef1 n\u00e0y \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n t\u1eeb tr\u00e1i sang ph\u1ea3i v\u00e0 c\u00e1c ch\u1eef s\u1ed1 s\u1ebd c\u00f3 gi\u00e1 tr\u1ecb gi\u1ea3m.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">T\u00f4i s\u1ebd \u0111\u1ee9ng tr\u01b0\u1edbc V ho\u1eb7c X.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Khi t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch vi\u1ebft c\u00e1c s\u1ed1 La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20, b\u1ea1n c\u0169ng n\u00ean ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c quy t\u1eafc b\u1ed5 sung v\u00e0 tr\u1eeb c\u00e1c s\u1ed1 khi vi\u1ebft. C\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">V\u1edbi s\u1ed1 La M\u00e3 1 \u0111\u1ebfn 20, tr\u1ebb em s\u1ebd th\u00eam s\u1ed1 ban \u0111\u1ea7u v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c s\u1ed1 b\u1ed5 sung s\u1ebd kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 3 l\u1ea7n. V\u00ed d\u1ee5, s\u1ed1 l\u01b0\u1ee3ng XII l\u00e0 12.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u1ed1i v\u1edbi quy t\u1eafc tr\u1eeb, c\u00e1c s\u1ed1 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o b\u00ean tr\u00e1i s\u1ebd l\u00e0 tr\u1eeb. Tr\u1ebb em s\u1ebd l\u1ea5y s\u1ed1 ban \u0111\u1ea7u tr\u1eeb \u0111i s\u1ed1 tr\u00e1i. V\u00e0 c\u00e1c s\u1ed1 b\u1ed5 sung c\u0169ng nh\u1ecf h\u01a1n g\u1ed1c. V\u00ed d\u1ee5, IX l\u00e0 9.<\/p>\n<\/li>\n<\/ul>\n<table style=\"border-collapse: collapse;width: 100%;background-color: #FBEEB8\" border=\"1\">\n<tr>\n<td style=\"width: 98.5189%\">\n<p style=\"text-align: center\">X\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc v\u1eefng ch\u1eafc cho tr\u1ebb em t\u1eeb khi c\u00f2n nh\u1ecf v\u1edbi \u0111a ph\u01b0\u01a1ng ti\u1ec7n, c\u1ef1c k\u1ef3 r\u1ebb c\u00f3 gi\u00e1 d\u01b0\u1edbi 2k\/ng\u00e0y v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/timhieungay.png\" alt=\"\" width=\"200\" height=\"41\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_loai_bai_tap_tren_chuoi_La_Ma_tu_1_den_20_la_pho_bien\"><\/span>C\u00e1c lo\u1ea1i b\u00e0i t\u1eadp tr\u00ean chu\u1ed7i La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20 l\u00e0 ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap tr\u1ebb em Rumani 1 \u0111\u1ebfn 20 hi\u1ec7u qu\u1ea3, cha m\u1eb9 n\u00ean \u0111\u1ec3 con c\u00e1i t\u1eadp th\u1ec3 d\u1ee5c li\u00ean quan \u0111\u1ebfn ch\u1eef s\u1ed1 La M\u00e3. C\u1ee5 th\u1ec3:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_Doc_cac_so_La_Ma\"><\/span>M\u1eabu 1: \u0110\u1ecdc c\u00e1c s\u1ed1 La M\u00e3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Lo\u1ea1i b\u00e0i t\u1eadp \u0111\u1ea7u ti\u00ean m\u00e0 tr\u1ebb em n\u00ean l\u00e0m quen l\u00e0 \u0111\u1ecdc c\u00e1c s\u1ed1 La M\u00e3. Cha m\u1eb9 s\u1ebd \u0111\u1ec3 con c\u00e1i h\u1ecd th\u1ef1c hi\u1ec7n nh\u1eefng b\u00e0i t\u1eadp n\u00e0y \u0111\u1ec3 ch\u00fang c\u00f3 th\u1ec3 l\u00e0m quen v\u1edbi m\u1eb7t s\u1ed1 La M\u00e3 m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. <\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: <em>\u0110\u1ecdc c\u00e1c s\u1ed1 La M\u00e3 sau: V, XI, XV, XIV, &#8230;<\/em><\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/3-so-la-ma-1-den-20.jpg\" alt=\"B\u00e0i t\u1eadp \u0111\u1ecdc ch\u1eef s\u1ed1 La M\u00e3 (Ngu\u1ed3n: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Xem_dong_ho_voi_so_La_Ma\"><\/span>M\u1eabu 2: Xem \u0111\u1ed3ng h\u1ed3 v\u1edbi s\u1ed1 La M\u00e3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ngo\u00e0i ra, cha m\u1eb9 c\u00f3 th\u1ec3 \u0111\u1ec3 con c\u00e1i h\u1ecd t\u1eadp th\u1ec3 d\u1ee5c v\u1ec1 \u0111\u1ed3ng h\u1ed3 v\u1edbi s\u1ed1 l\u01b0\u1ee3ng La M\u00e3. V\u00ed d\u1ee5, cha m\u1eb9 c\u00f3 th\u1ec3 h\u1ecfi \u0111\u1ed3ng h\u1ed3 kh\u00f4ng?<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/4-so-la-ma-1-den-20.jpg\" alt=\"T\u1eadp th\u1ec3 d\u1ee5c \u0111\u1ec3 xem Th\u1eddi gian s\u1ed1 La M\u00e3 (Ngu\u1ed3n c\u1ee7a h\u00ecnh \u1ea3nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_Viet_so_La_Ma_theo_yeu_cau\"><\/span>M\u1eabu 3: Vi\u1ebft s\u1ed1 La M\u00e3 theo y\u00eau c\u1ea7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Tr\u00e1i ng\u01b0\u1ee3c v\u1edbi h\u00ecnh th\u1ee9c s\u1ed1 La M\u00e3, cha m\u1eb9 s\u1ebd \u0111\u1ec3 con c\u00e1i h\u1ecd vi\u1ebft s\u1ed1 La M\u00e3. Cha m\u1eb9 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u con c\u00e1i c\u1ee7a h\u1ecd vi\u1ebft s\u1ed1 t\u1eeb ti\u1ebfng Latin v\u00e0o s\u1ed1 La M\u00e3. V\u00e0 lo\u1ea1i b\u00e0i t\u1eadp n\u00e0y s\u1ebd y\u00eau c\u1ea7u tr\u1ebb em \u0111\u01b0\u1ee3c quay s\u1ed1 \u0111\u1ec3 c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: <em>Cha m\u1eb9 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u con c\u00e1i c\u1ee7a h\u1ecd vi\u1ebft c\u00e1c s\u1ed1 sau v\u00e0o s\u1ed1 La M\u00e3 5, 19, 3, 16, 8, &#8230;<\/em><\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/5-so-la-ma-1-den-20.jpg\" alt=\"B\u00e0i t\u1eadp vi\u1ebft s\u1ed1 La M\u00e3 theo y\u00eau c\u1ea7u (Ngu\u1ed3n h\u00ecnh \u1ea3nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_4_Tao_so_La_Ma_bang_cach_sap_xep_hoac_di_chuyen_tran_dau\"><\/span>M\u1eabu 4: T\u1ea1o s\u1ed1 La M\u00e3 b\u1eb1ng c\u00e1ch s\u1eafp x\u1ebfp ho\u1eb7c di chuy\u1ec3n tr\u1eadn \u0111\u1ea5u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">M\u1ed9t lo\u1ea1i b\u00e0i t\u1eadp th\u00fa v\u1ecb kh\u00e1c m\u00e0 cha m\u1eb9 n\u00ean \u0111\u1ec3 con c\u00e1i l\u00e0m quen l\u00e0 t\u1ea1o ra c\u00e1c s\u1ed1 La M\u00e3 t\u1eeb vi\u1ec7c s\u1eafp x\u1ebfp ho\u1eb7c di chuy\u1ec3n c\u00e1c tr\u1eadn \u0111\u1ea5u. Cha m\u1eb9 s\u1ebd cho con m\u1ed9t h\u1ed9p c\u00e1c tr\u1eadn \u0111\u1ea5u, y\u00eau c\u1ea7u ch\u00fang s\u1eafp x\u1ebfp c\u00e1c s\u1ed1 kh\u00e1c nhau.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: <em>Y\u00eau c\u1ea7u con b\u1ea1n x\u1ebfp h\u1ea1ng 6 t\u1eeb c\u00e1c tr\u1eadn \u0111\u1ea5u, y\u00eau c\u1ea7u t\u00f4i di chuy\u1ec3n c\u00e1c tr\u1eadn \u0111\u1ea5u \u0111\u1ec3 m\u1eabu 4 t\u1eeb 6, &#8230;<\/em><\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/6-so-la-ma-1-den-20.jpg\" alt=\"S\u1eafp x\u1ebfp c\u00e1c tr\u1eadn \u0111\u1ea5u t\u1eeb c\u00e1c s\u1ed1 La M\u00e3 (Ngu\u1ed3n: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_5_So_sanh_cac_so\"><\/span>M\u1eabu 5: So s\u00e1nh c\u00e1c s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Lo\u1ea1i b\u00e0i t\u1eadp cu\u1ed1i c\u00f9ng s\u1ebd l\u00e0 so s\u00e1nh c\u00e1c s\u1ed1 La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20. Theo \u0111\u00f3, \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u00e0i t\u1eadp, b\u1ea1n c\u1ea7n hi\u1ec3u c\u00e1c s\u1ed1 \u1edf \u0111\u00e2u, l\u1edbn h\u01a1n, l\u1edbn h\u01a1n, &#8230;<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5<em> So s\u00e1nh c\u00e1c s\u1ed1 VII v\u1edbi XIX, &#8230;<\/em><\/p>\n<p dir=\"ltr\"><em><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/7-so-la-ma-1-den-20.jpg\" alt=\"H\u00ecnh th\u1ee9c c\u1ee7a b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 so s\u00e1nh v\u1edbi s\u1ed1 La M\u00e3 (Ngu\u1ed3n: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tom_tat_mot_so_bai_tap_tren_so_1_den_20_tu_co_ban_den_nang_cao\"><\/span>T\u00f3m t\u1eaft m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp tr\u00ean s\u1ed1 1 \u0111\u1ebfn 20 t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 c\u00e1c s\u1ed1 La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20 ph\u1ee5 huynh c\u00f3 th\u1ec3 \u0111\u1ec3 con c\u00e1i h\u1ecd t\u1eadp luy\u1ec7n v\u00e0o ng\u00e0y l\u1ec5 ho\u1eb7c k\u1ef3 ngh\u1ec9 h\u00e8 nh\u01b0:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_1\"><\/span>B\u00e0i t\u1eadp 1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ecdc c\u00e1c s\u1ed1 La M\u00e3 sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. Vi m\u00f4<\/p>\n<p dir=\"ltr\">b. XIX<\/p>\n<p dir=\"ltr\">c. XVI<\/p>\n<p dir=\"ltr\">d. Viii<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_2\"><\/span>B\u00e0i t\u1eadp 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Bao nhi\u00eau gi\u1edd \u0111\u1ed3ng h\u1ed3?<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/8-so-la-ma-1-den-20.jpg\" alt=\"B\u00e0i t\u1eadp \u0111\u1ec3 xem gi\u1edd t\u1eeb ch\u1eef s\u1ed1 La M\u00e3 (Ngu\u1ed3n: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_3\"><\/span>B\u00e0i t\u1eadp 3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Vi\u1ebft c\u00e1c s\u1ed1 sau v\u00e0o s\u1ed1 La M\u00e3:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 12<\/p>\n<p dir=\"ltr\">b. 16<\/p>\n<p dir=\"ltr\">c. 8<\/p>\n<p dir=\"ltr\">d. 19<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_4\"><\/span>B\u00e0i t\u1eadp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">S\u1eafp x\u1ebfp c\u00e1c s\u1ed1 sau v\u00e0o s\u1ed1 La M\u00e3 t\u1eeb c\u00e1c tr\u1eadn \u0111\u1ea5u:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 5<\/p>\n<p dir=\"ltr\">b. 10<\/p>\n<p dir=\"ltr\">c. 17<\/p>\n<p dir=\"ltr\">d. 19<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_5\"><\/span>B\u00e0i t\u1eadp 5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Di chuy\u1ec3n c\u00e1c tr\u1eadn \u0111\u1ea5u \u0111\u1ec3 t\u1ea1o th\u00e0nh s\u1ed1 La M\u00e3 th\u00edch h\u1ee3p:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 4 th\u00e0nh 6<\/p>\n<p dir=\"ltr\">b. 9 \u0111\u1ebfn 11<\/p>\n<p dir=\"ltr\">c. 6 \u0111\u1ebfn 4<\/p>\n<p dir=\"ltr\">d. 11 th\u00e0nh 9<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_6\"><\/span>B\u00e0i t\u1eadp 6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">So s\u00e1nh c\u00e1c s\u1ed1 La M\u00e3 sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. Vii v\u00e0 ix<\/p>\n<p dir=\"ltr\">b. XVI v\u00e0 XX<\/p>\n<p dir=\"ltr\">c. VI v\u00e0 XIX<\/p>\n<p dir=\"ltr\">d. XIV v\u00e0 XVIII<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_7\"><\/span>B\u00e0i t\u1eadp 7<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. VI + IV<\/p>\n<p dir=\"ltr\">b. Viii + viii<\/p>\n<p dir=\"ltr\">c. XIX + i<\/p>\n<p dir=\"ltr\">d. X + IX<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_8\"><\/span>B\u00e0i t\u1eadp 8<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. Xx &#8211; ii<\/p>\n<p dir=\"ltr\">b. XIX &#8211; III<\/p>\n<p dir=\"ltr\">c. XV &#8211; VIII<\/p>\n<p dir=\"ltr\">d. XVI &#8211; VII<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_9\"><\/span>B\u00e0i t\u1eadp 9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. X + v<\/p>\n<p dir=\"ltr\">b. XV &#8211; VII<\/p>\n<p dir=\"ltr\">c. XIX &#8211; v<\/p>\n<p dir=\"ltr\">d. X + VIII<\/p>\n<p dir=\"ltr\">Xem th\u00eam: T\u00ecm hi\u1ec3u tr\u00ecnh t\u1ef1 La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 100 r\u1ea5t \u0111\u01a1n gi\u1ea3n khi b\u1ea1n bi\u1ebft quy t\u1eafc n\u00e0y!<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cach_hoc_nguoi_La_Ma_tu_1_den_20_hieu_qua\"><\/span>C\u00e1ch h\u1ecdc ng\u01b0\u1eddi La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20 hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 tr\u1ebb h\u1ecdc c\u00e1c ch\u1eef s\u1ed1 La M\u00e3 t\u1eeb 1 \u0111\u1ebfn 20 hi\u1ec7u \u1ee9ng, cha m\u1eb9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn nh\u1eefng kinh nghi\u1ec7m sau:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/9-so-la-ma-1-den-20.jpg\" alt=\"B\u00ed m\u1eadt c\u1ee7a vi\u1ec7c h\u1ecdc La M\u00e3 La M\u00e3 l\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t (Ngu\u1ed3n h\u00ecnh \u1ea3nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng c\u00e1c s\u1ed1 La M\u00e3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng: tr\u1ebb em c\u1ea7n nh\u1edb c\u1ea9n th\u1eadn c\u00e1c s\u1ed1 ph\u1ed5 bi\u1ebfn nh\u01b0 I, V v\u00e0 X. \u0110\u00e2y l\u00e0 nh\u1eefng s\u1ed1 La M\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00e1 nhi\u1ec1u v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u1ed1 kh\u00e1c nhau. <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u01b0\u1eddng xuy\u00ean l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0: Y\u00eau c\u1ea7u con b\u1ea1n l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 th\u01b0\u1eddng xuy\u00ean s\u1ebd gi\u00fap tr\u1ebb em c\u00f3 \u0111\u01b0\u1ee3c s\u1ed1 La M\u00e3 l\u00e2u h\u01a1n. V\u00e0 khi l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 th\u01b0\u1eddng xuy\u00ean, tr\u1ebb em s\u1ebd th\u00e0nh th\u1ea1o c\u00e1c s\u1ed1 La M\u00e3 h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u1eb7t c\u00e1c b\u00e0i t\u1eadp v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi La M\u00e3 v\u00e0o cu\u1ed9c s\u1ed1ng: V\u00ed d\u1ee5, cha m\u1eb9 y\u00eau c\u1ea7u y\u00eau c\u1ea7u em b\u00e9 \u0111\u1ecdc s\u1ed1 tr\u00ean \u0111\u1ed3ng h\u1ed3 s\u1ed1 La M\u00e3, y\u00eau c\u1ea7u \u0111\u1ee9a tr\u1ebb \u0111\u1ecdc c\u00e1c ch\u01b0\u01a1ng \u0111\u00e1nh s\u1ed1 La M\u00e3, &#8230; v\u00ec v\u1eady ch\u00fang s\u1ebd d\u1ec5 hi\u1ec3u h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ch\u01a1i tr\u00f2 ch\u01a1i v\u1edbi ch\u1eef s\u1ed1 La M\u00e3: Cung c\u1ea5p cho em b\u00e9 m\u1ed9t tr\u00f2 ch\u01a1i li\u00ean quan \u0111\u1ebfn ch\u1eef s\u1ed1 La M\u00e3 s\u1ebd k\u00edch th\u00edch tr\u1ebb nh\u1ecf. Cha m\u1eb9 c\u00f3 th\u1ec3 \u0111\u1ec3 con c\u00e1i ch\u01a1i c\u00e1c tr\u1eadn \u0111\u1ea5u th\u00e0nh s\u1ed1 La M\u00e3, &#8230; m\u1ed7i khi em b\u00e9 x\u1ebfp h\u1ea1ng, cha m\u1eb9 s\u1ebd \u0111\u1ebfm th\u1eddi gian, \u0111\u1ee9a tr\u1ebb s\u1ebd c\u00f3 th\u1ec3 nh\u1eadn qu\u00e0 nhanh ch\u00f3ng, &#8230;.<\/p>\n<\/li>\n<\/ul>\n<\/p>\n<p dir=\"ltr\">B\u00e2y gi\u1edd cha m\u1eb9 bi\u1ebft c\u00e1ch d\u1ea1y con c\u00e1ch h\u1ecdc R\u00f4 -ma t\u1eeb 1 \u0111\u1ebfn 20? Hy v\u1ecdng r\u1eb1ng \u0111\u00e2y s\u1ebd l\u00e0 s\u1ef1 chia s\u1ebb chi ti\u1ebft nh\u1ea5t v\u1ec1 c\u00e1c ch\u1eef s\u1ed1 La M\u00e3 n\u00ean d\u00e0nh th\u1eddi gian \u0111\u1ec3 h\u1ecdc c\u00e1ch tham gia v\u1edbi con c\u00e1i c\u1ee7a h\u1ecd \u0111\u1ec3 h\u1ecdc Rome hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<p>                                    Ngu\u1ed3n tham chi\u1ebfu<\/p>\n<p>La M\u00e3 s\u1ed1 1 \u0111\u1ebfn 20 &#8211; Truy c\u1eadp ng\u00e0y 24 th\u00e1ng 6 n\u0103m 2022<\/p>\n<p>https:\/\/www.cuemath.com\/numbers\/roman-numerals-1-to-20\/<\/p>\n<p>La M\u00e3 s\u1ed1 1 \u0111\u1ebfn 20 &#8211; Truy c\u1eadp ng\u00e0y 24 th\u00e1ng 6 n\u0103m 2022<\/p>\n<p>https:<\/p>\n<p>La M\u00e3 s\u1ed1 1 \u0111\u1ebfn 20 &#8211; Truy c\u1eadp ng\u00e0y 24 th\u00e1ng 6 n\u0103m 2022<\/p>\n<p>https:\/\/www.rapidtables.com\/math\/symbols\/roman-numerals-1-20.html<\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>S\u1ed1 La M\u00e3 1 \u0111\u1ebfn 20 \u0111\u01b0\u1ee3c coi l\u00e0 c\u00e1c s\u1ed1 c\u01a1 b\u1ea3n ph\u1ed5 bi\u1ebfn trong c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc, b\u00e0i ki\u1ec3m tra v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. \u0110\u1ec3 gi\u00fap con b\u1ea1n h\u1ecdc c\u00e1c chu\u1ed7i n\u00e0y \u0111\u01a1n gi\u1ea3n h\u01a1n, vui l\u00f2ng tham kh\u1ea3o b\u00e0i vi\u1ebft sau \u0111\u00e2y c\u1ee7a Kh\u1ec9. H\u00e0ng&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-19422","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/19422","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=19422"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/19422\/revisions"}],"predecessor-version":[{"id":24334,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/19422\/revisions\/24334"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=19422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=19422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=19422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}