{"id":16592,"date":"2025-07-03T18:30:04","date_gmt":"2025-07-03T11:30:04","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=16592"},"modified":"2025-07-04T10:34:57","modified_gmt":"2025-07-04T03:34:57","slug":"tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/","title":{"rendered":"T\u1ea5t t\u1ea7n t\u1eadt ki\u1ebfn th\u1ee9c v\u1ec1 ki l\u00f4 m\u00e9t vu\u00f4ng to\u00e1n l\u1edbp 4 chi ti\u1ebft"},"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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Km_vuong_la_gi\" >Km vu\u00f4ng l\u00e0 g\u00ec?<\/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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Lam_the_nao_de_doc_va_lam_the_nao_de_viet_mot_met_vuong_km\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecdc v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 vi\u1ebft m\u1ed9t m\u00e9t vu\u00f4ng km?<\/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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Huong_dan_ve_cach_chuyen_doi_KM2_sang_cac_don_vi_khac\" >H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch chuy\u1ec3n \u0111\u1ed5i KM2 sang c\u00e1c \u0111\u01a1n v\u1ecb kh\u00e1c<\/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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Loai_km%C2%B2_pho_bien_cua_toan_hoc_la_pho_bien\" >Lo\u1ea1i km\u00b2 ph\u1ed5 bi\u1ebfn c\u1ee7a to\u00e1n h\u1ecdc 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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Mau_1_Doc_va_ghi_so_voi_met_vuong_km\" >M\u1eabu 1: \u0110\u1ecdc v\u00e0 ghi s\u1ed1 v\u1edbi m\u00e9t vu\u00f4ng km<\/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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Mau_2_Chuyen_doi_cac_don_vi_khac_thanh_KM2_va_nguoc_lai\" >M\u1eabu 2: Chuy\u1ec3n \u0111\u1ed5i c\u00e1c \u0111\u01a1n v\u1ecb kh\u00e1c th\u00e0nh KM2 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i<\/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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Mau_3_So_sanh\" >M\u1eabu 3: So s\u00e1nh<\/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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Mau_4_Tinh_toan\" >M\u1eabu 4: T\u00ednh to\u00e1n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Bi_quyet_hoc_tap_va_ghi_nho_kien_%E2%80%8B%E2%80%8Bthuc_KM2_tot_hon\" >B\u00ed quy\u1ebft h\u1ecdc t\u1eadp v\u00e0 ghi nh\u1edb ki\u1ebfn \u200b\u200bth\u1ee9c KM2 t\u1ed1t h\u01a1n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Tao_su_phan_khich_khi_hoc_toan_kich_thich_tu_duy_cho_tre_em_voi_toan_hoc_khi\" >T\u1ea1o s\u1ef1 ph\u1ea5n kh\u00edch khi h\u1ecdc to\u00e1n, k\u00edch th\u00edch t\u01b0 duy cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Hoc_toan_KM2_bang_cach_hieu_ly_thuyet\" >H\u1ecdc to\u00e1n KM2 b\u1eb1ng c\u00e1ch hi\u1ec3u l\u00fd thuy\u1ebft<\/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\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Hoc_voi_thuc_tien_la_dieu_can_thiet\" >H\u1ecdc v\u1edbi th\u1ef1c ti\u1ec5n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Mot_so_bai_tap_met_vuong_cho_em_be_cua_ban\" >M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp m\u00e9t vu\u00f4ng cho em b\u00e9 c\u1ee7a b\u1ea1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-ki-lo-met-vuong-toan-lop-4-chi-tiet\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>Kilomet vu\u00f4ng l\u00e0 m\u1ed9t \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng quen thu\u1ed9c, c\u0169ng nh\u01b0 b\u1eaft \u0111\u1ea7u ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 4, h\u1ecd s\u1ebd h\u1ecdc v\u00e0 l\u00e0m quen. Ngo\u00e0i vi\u1ec7c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u01a1n v\u1ecb kho\u1ea3ng c\u00e1ch v\u00e0 kho\u1ea3ng c\u00e1ch, \u0111\u01a1n v\u1ecb c\u1ee7a KM2 c\u0169ng c\u00f3 nhi\u1ec1u \u0111i\u1ec1u th\u00fa v\u1ecb, h\u00e3y \u0111\u1ec3 Kh\u1ec9 t\u00ecm hi\u1ec3u th\u00eam trong b\u00e0i vi\u1ebft sau.<\/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 h\u01a1n 2.000 t\u1eeb &amp; 6.000 c\u00e2u ti\u1ebfng Anh \u0111\u1ec3 ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n 4 k\u1ef9 n\u0103ng ti\u1ebfng Anh t\u1ed1t &#8211; ti\u1ebfng Anh theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n \u0111\u1ea1i ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng EQ &amp; Vi\u1ec7t Nam *B\u1ea1n ch\u01b0a ch\u1ecdn b\u1ea5t k\u1ef3 m\u1ee5c n\u00e0o! \u0110\u0103ng k\u00fd t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Km_vuong_la_gi\"><\/span>Km vu\u00f4ng l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00e1c km m\u00e9t vu\u00f4ng l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u01a1n v\u1ecb \u0111o di\u1ec7n t\u00edch th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Theo h\u1ec7 th\u1ed1ng SI, \u0111\u00e2y l\u00e0 khu v\u1ef1c c\u1ee7a m\u1ed9t h\u00ecnh vu\u00f4ng c\u00f3 chi\u1ec1u d\u00e0i 1km. \u0110\u1ed3ng th\u1eddi, m\u00e9t vu\u00f4ng l\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb \u0111o th\u1ee9 c\u1ea5p trong h\u1ec7 th\u1ed1ng SI.<\/p>\n<p dir=\"ltr\">Bi\u1ec3u t\u01b0\u1ee3ng: Km\u00b2<\/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\/ki-lo-met-vuong-1.jpg\" alt=\"KM2 l\u00e0 m\u1ed9t \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng khu v\u1ef1c ph\u1ed5 bi\u1ebfn. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Lam_the_nao_de_doc_va_lam_the_nao_de_viet_mot_met_vuong_km\"><\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecdc v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 vi\u1ebft m\u1ed9t m\u00e9t vu\u00f4ng km?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li dir=\"ltr\">C\u00e1ch \u0111\u1ecdc: km m\u00e9t vu\u00f4ng<\/li>\n<li dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p vi\u1ebft: Ch\u1ee7 y\u1ebfu l\u00e0 khi vi\u1ebft, ch\u00fang t\u00f4i s\u1ebd s\u1eed d\u1ee5ng bi\u1ec3u t\u01b0\u1ee3ng l\u00e0 KM2. Ngo\u00e0i ra, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 vi\u1ebft d\u01b0\u1edbi d\u1ea1ng m\u00e9t vu\u00f4ng, km vu\u00f4ng. Ho\u1eb7c t\u00ednh b\u1eb1ng km vu\u00f4ng m\u00e9t trong ti\u1ebfng Anh \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng km vu\u00f4ng.<\/li>\n<\/ul>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 1500 km\u00b2: M\u1ed9t ngh\u00ecn n\u0103m tr\u0103m km m\u00e9t vu\u00f4ng<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Huong_dan_ve_cach_chuyen_doi_KM2_sang_cac_don_vi_khac\"><\/span>H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch chuy\u1ec3n \u0111\u1ed5i KM2 sang c\u00e1c \u0111\u01a1n v\u1ecb kh\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Theo Si System, \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i c\u00e1c \u0111\u01a1n v\u1ecb KM2 sang c\u00e1c \u0111\u01a1n v\u1ecb kh\u00e1c, ch\u00fang t\u00f4i d\u1ef1a v\u00e0o c\u00e1c quy t\u1eafc sau:<\/p>\n<ul>\n<li dir=\"ltr\">Khi thay \u0111\u1ed5i \u0111\u01a1n v\u1ecb km\u00b2 th\u00e0nh \u0111\u01a1n v\u1ecb nh\u1ecf h\u01a1n li\u1ec1n k\u1ec1, ch\u00fang t\u00f4i nh\u00e2n s\u1ed1 \u0111\u00f3 v\u1edbi 100<\/li>\n<li dir=\"ltr\">Khi thay \u0111\u1ed5i \u0111\u01a1n v\u1ecb \u0111o km\u00b2 th\u00e0nh m\u1ed9t \u0111\u01a1n v\u1ecb l\u1edbn h\u01a1n, ch\u00fang t\u00f4i chia s\u1ed1 \u0111\u00f3 v\u1edbi 100<\/li>\n<\/ul>\n<p dir=\"ltr\">V\u00ed d\u1ee5<\/p>\n<ul>\n<li dir=\"ltr\">1 km\u00b2 = 1 000 000 m\u00e9t vu\u00f4ng<\/li>\n<li dir=\"ltr\">1 km\u00b2 = 100 ha<\/li>\n<li dir=\"ltr\">1 km\u00b2 = 0,386 102 d\u1eb7m vu\u00f4ng (th\u01b0\u1eddng)<\/li>\n<li dir=\"ltr\">1 km\u00b2 = 247.105 381 M\u00f4 h\u00ecnh<\/li>\n<\/ul>\n<p dir=\"ltr\">\u0110\u1ed1i di\u1ec7n:<\/p>\n<ul>\n<li dir=\"ltr\">1 m\u00b2 = 0,000 001 km\u00b2<\/li>\n<li dir=\"ltr\">1 ha = 0,01 km\u00b2<\/li>\n<li dir=\"ltr\">1 d\u1eb7m vu\u00f4ng = 2.589 988 km\u00b2<\/li>\n<li dir=\"ltr\">1 m\u1eabu = 0,004 047 km\u00b2<\/li>\n<\/ul>\n<p dir=\"ltr\">Ch\u00fang ta c\u00f3 th\u1ec3 theo d\u00f5i b\u1ea3ng 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\/ki-lo-met-vuong-2.jpg\" alt=\"B\u1ea3ng chuy\u1ec3n \u0111\u1ed5i m\u1ed9t s\u1ed1 \u0111\u01a1n v\u1ecb \u0111o khu v\u1ef1c chung. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Loai_km%C2%B2_pho_bien_cua_toan_hoc_la_pho_bien\"><\/span>Lo\u1ea1i km\u00b2 ph\u1ed5 bi\u1ebfn c\u1ee7a to\u00e1n h\u1ecdc l\u00e0 ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 4, h\u1ecd s\u1ebd l\u00e0m quen v\u1edbi ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 \u0111\u01a1n v\u1ecb KM\u00b2 n\u00e0y. C\u00f9ng v\u1edbi \u0111\u00f3 l\u00e0 c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp m\u00e0 h\u1ecd ph\u1ea3i chinh ph\u1ee5c nh\u01b0:<\/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\/ki-lo-met-vuong-3.jpg\" alt=\"Trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 4, h\u1ecd s\u1ebd g\u1eb7p nhi\u1ec1u lo\u1ea1i b\u00e0i t\u1eadp cho KM2. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_Doc_va_ghi_so_voi_met_vuong_km\"><\/span>M\u1eabu 1: \u0110\u1ecdc v\u00e0 ghi s\u1ed1 v\u1edbi m\u00e9t vu\u00f4ng km<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i ph\u00e1p: \u00c1p d\u1ee5ng c\u00e1c quy t\u1eafc \u0111\u1ecdc v\u00e0 vi\u1ebft m\u00e0 kh\u1ec9 chia s\u1ebb \u1edf tr\u00ean \u0111\u1ec3 \u0111\u01b0a ra c\u00e2u tr\u1ea3 l\u1eddi ch\u00ednh x\u00e1c nh\u1ea5t.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: \u0110\u1ecdc v\u00e0 vi\u1ebft<\/em><\/p>\n<p dir=\"ltr\"><em>234 km\u00b2:<\/em><\/p>\n<p dir=\"ltr\"><em>Hai m\u01b0\u01a1i ngh\u00ecn km m\u00e9t vu\u00f4ng:<\/em><\/p>\n<p dir=\"ltr\"><em>Ph\u1ea7n th\u01b0\u1edfng:<\/em><\/p>\n<p dir=\"ltr\"><em>234 km\u00b2: Hai tr\u0103m ba m\u01b0\u01a1i km vu\u00f4ng<\/em><\/p>\n<p dir=\"ltr\"><em>Hai m\u01b0\u01a1i -Vive ngh\u00ecn km m\u00e9t vu\u00f4ng: 2500 km\u00b2.<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Chuyen_doi_cac_don_vi_khac_thanh_KM2_va_nguoc_lai\"><\/span>M\u1eabu 2: Chuy\u1ec3n \u0111\u1ed5i c\u00e1c \u0111\u01a1n v\u1ecb kh\u00e1c th\u00e0nh KM2 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u00c1p d\u1ee5ng lu\u1eadt chuy\u1ec3n \u0111\u1ed5i c\u00e1c ph\u00e9p \u0111o tr\u00ean \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c y\u00eau c\u1ea7u ch\u00ednh x\u00e1c.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: Nh\u1eadp d\u1ea5u th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m<\/em><\/p>\n<p dir=\"ltr\"><em>1 km\u00b2 = &#8230;&#8230;&#8230;.. M2<\/em><\/p>\n<p dir=\"ltr\"><em>1 000 000 m\u00e9t vu\u00f4ng = &#8230; km\u00b2<\/em><\/p>\n<p dir=\"ltr\"><em>2 000 000 m\u00e9t vu\u00f4ng = &#8230;&#8230;&#8230;. km\u00b2<\/em><\/p>\n<p dir=\"ltr\"><em>Ph\u1ea7n th\u01b0\u1edfng:<\/em><\/p>\n<p dir=\"ltr\"><em>1 km\u00b2 = 1 000 000 m\u00e9t vu\u00f4ng<\/em><\/p>\n<p dir=\"ltr\"><em>1 000 000 m\u00e9t vu\u00f4ng = 1 km\u00b2<\/em><\/p>\n<p dir=\"ltr\"><em>2 000 000 m\u00e9t vu\u00f4ng = 2 km\u00b2<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_So_sanh\"><\/span>M\u1eabu 3: So s\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u0110\u1ec3 so s\u00e1nh hai v\u1ea5n \u0111\u1ec1, ch\u00fang ta ph\u1ea3i chuy\u1ec3n \u0111\u1ed5i hai b\u00ean th\u00e0nh c\u00f9ng m\u1ed9t \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng, ch\u1eb3ng h\u1ea1n nh\u01b0 KM\u00b2 v\u00e0 sau \u0111\u00f3 ti\u1ebfp t\u1ee5c so s\u00e1nh nh\u01b0 c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean kh\u00e1c. N\u1ebfu c\u00e1c b\u00ean c\u00f3 c\u00f9ng \u0111\u01a1n v\u1ecb \u0111o, ch\u1ec9 c\u1ea7n so s\u00e1nh c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 123 m\u00e9t vu\u00f4ng &#8230; 1 km\u00b2 23 m\u00e9t vu\u00f4ng<\/em><\/p>\n<p dir=\"ltr\"><em>Ph\u1ea7n th\u01b0\u1edfng:<\/em><\/p>\n<p dir=\"ltr\"><em>Ch\u00fang ta c\u00f3: 1 km\u00b2 23 m\u00b2 = 1000000 m\u00e9t vu\u00f4ng + 23 m\u00e9t vu\u00f4ng = 1000023 m\u00e9t vu\u00f4ng<\/em><\/p>\n<p dir=\"ltr\"><em>\u0110\u00f3 l\u00e0 1023 m\u00e9t vu\u00f4ng &lt;1000023 m\u00e9t vu\u00f4ng<\/em><\/p>\n<p dir=\"ltr\"><em>Do \u0111\u00f3, 123 m\u00e9t vu\u00f4ng &lt;1 km\u00b2 23m\u00b2.<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_4_Tinh_toan\"><\/span>M\u1eabu 4: T\u00ednh to\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u0110\u1ea7u ti\u00ean, ch\u00fang t\u00f4i s\u1ebd \u0111\u1ecdc c\u1ea9n th\u1eadn v\u1ea5n \u0111\u1ec1 \u0111\u00e3 cho, sau \u0111\u00f3 d\u1ef1a v\u00e0o d\u1eef li\u1ec7u \u0111\u00e3 cho \u0111\u1ec3 t\u00ecm gi\u1ea3i ph\u00e1p. Sau \u0111\u00f3 tr\u00ecnh b\u00e0y gi\u1ea3i ph\u00e1p v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi ch\u1ec9 t\u00ecm th\u1ea5y n\u00f3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5, m\u1ed9t v\u00f9ng \u0111\u1ea5t h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 chi\u1ec1u d\u00e0i 3km, chi\u1ec1u r\u1ed9ng b\u1eb1ng 1\/3 chi\u1ec1u d\u00e0i. T\u00ednh di\u1ec7n t\u00edch c\u1ee7a v\u00f9ng \u0111\u1ea5t \u0111\u00f3.<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i ph\u00e1p: <\/em><\/p>\n<p dir=\"ltr\"><em>Chi\u1ec1u r\u1ed9ng c\u1ee7a di\u1ec7n t\u00edch \u0111\u1ea5t l\u00e0: <\/em><\/p>\n<p dir=\"ltr\"><em>3: 3 = 1 (km)<\/em><\/p>\n<p dir=\"ltr\"><em>Khu v\u1ef1c c\u1ee7a khu v\u1ef1c \u0111\u1ea5t l\u00e0: <\/em><\/p>\n<p dir=\"ltr\"><em>3 x 1 = 3 (km\u00b2)<\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: 3 km\u00b2<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bi_quyet_hoc_tap_va_ghi_nho_kien_%E2%80%8B%E2%80%8Bthuc_KM2_tot_hon\"><\/span>B\u00ed quy\u1ebft h\u1ecdc t\u1eadp v\u00e0 ghi nh\u1edb ki\u1ebfn \u200b\u200bth\u1ee9c KM2 t\u1ed1t h\u01a1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap h\u1ecdc sinh h\u1ecdc h\u1ecfi, ghi nh\u1edb t\u1ed1t v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp v\u1ec1 \u0111\u01a1n v\u1ecb KM\u00b2 hi\u1ec7u qu\u1ea3, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o \u0111\u1ec3 ph\u1ee5 huynh h\u1ed7 tr\u1ee3 em b\u00e9:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tao_su_phan_khich_khi_hoc_toan_kich_thich_tu_duy_cho_tre_em_voi_toan_hoc_khi\"><\/span>T\u1ea1o s\u1ef1 ph\u1ea5n kh\u00edch khi h\u1ecdc to\u00e1n, k\u00edch th\u00edch t\u01b0 duy cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/p>\n<p dir=\"ltr\">\u0110\u1ec3 t\u1ea1o s\u1ef1 quan t\u00e2m cho tr\u1ebb em khi h\u1ecdc v\u1ec1 ki\u1ebfn \u200b\u200bth\u1ee9c m\u00e9t vu\u00f4ng n\u00f3i ri\u00eang, c\u0169ng nh\u01b0 n\u1ec1n t\u1ea3ng ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n t\u1eeb tr\u01b0\u1eddng m\u1ea7m non \u0111\u1ebfn tr\u01b0\u1eddng ti\u1ec3u h\u1ecdc m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. Ph\u1ee5 huynh c\u00f3 th\u1ec3 ngay l\u1eadp t\u1ee9c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc kh\u1ec9, \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u0111\u1ec3 theo ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c m\u1edbi nh\u1ea5t c\u1ee7a B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0 \u0110\u00e0o t\u1ea1o \u0111\u1ec3 h\u1ecd c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng l\u00e0m quen, c\u0169ng nh\u01b0 h\u1ed7 tr\u1ee3 h\u1ecdc t\u1eadp tr\u00ean tr\u01b0\u1eddng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/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\/ki-lo-met-vuong-4.jpg\" alt=\"H\u1ecdc to\u00e1n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u00edch c\u1ef1c v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9. (\u1ea2nh: Kh\u1ec9)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">C\u1ee5 th\u1ec3, \u1ee9ng d\u1ee5ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math s\u1ebd cung c\u1ea5p h\u1ec7 th\u1ed1ng b\u00e0i gi\u1ea3ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u01b0\u1edbi d\u1ea1ng video, h\u00ecnh \u1ea3nh ho\u1ea1t h\u00ecnh h\u00e0i h\u01b0\u1edbc, g\u1eafn b\u00f3 v\u1edbi h\u01a1n 60 ch\u1ee7 \u0111\u1ec1 to\u00e1n h\u1ecdc, \u0111\u01b0\u1ee3c chia th\u00e0nh 4 c\u1ea5p \u0111\u1ed9 t\u1eeb d\u1ec5 d\u00e0ng \u0111\u1ebfn t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed7i \u0111\u1ed9 tu\u1ed5i v\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a tr\u1ebb \u0111\u1ec3 cha m\u1eb9 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ch\u1ecdn b\u00e0i h\u1ecdc ph\u00f9 h\u1ee3p nh\u1ea5t. \u0110\u1ed3ng th\u1eddi, khi h\u1ecdc qua c\u00e1c video, nh\u1eefng h\u00ecnh \u1ea3nh h\u00e0i h\u01b0\u1edbc nh\u01b0 v\u1eady s\u1ebd gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ghi nh\u1edb v\u00e0 quan t\u00e2m h\u01a1n ch\u1ec9 h\u1ecdc tr\u00ean s\u00e1ch.<\/p>\n<p dir=\"ltr\">Ngo\u00e0i ra, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef c\u0169ng ph\u00e1t tri\u1ec3n h\u01a1n 10.000 ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u00e1c, \u0111\u1ec3 ch\u00fang v\u1eeba ch\u01a1i v\u00e0 h\u1ecdc to\u00e1n. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p gi\u00e1o d\u1ee5c t\u00edch c\u1ef1c \u0111\u01b0\u1ee3c nhi\u1ec1u chuy\u00ean gia khuy\u1ebfn kh\u00edch \u00e1p d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra s\u1ef1 ph\u1ea5n kh\u00edch, k\u00edch th\u00edch suy ngh\u0129 n\u00e3o b\u1ed9 c\u1ee7a tr\u1ebb khi h\u1ecdc to\u00e1n \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t h\u01a1n.<\/p>\n<p dir=\"ltr\">Ch\u01b0a k\u1ec3, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef c\u0169ng cung c\u1ea5p th\u00eam c\u00e1c b\u00e0i t\u1eadp b\u1ed5 sung v\u1edbi \u1ee9ng d\u1ee5ng. \u0110i\u1ec1u n\u00e0y gi\u00fap tr\u1ebb h\u1ecdc, th\u1ef1c h\u00e0nh v\u00e0 \u00e1p d\u1ee5ng nhi\u1ec1u k\u1ef9 n\u0103ng \u0111\u1ec3 gi\u00fap ph\u00e1t tri\u1ec3n b\u1ed9 n\u00e3o m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n nh\u1ea5t.<\/p>\n<p dir=\"ltr\">Ch\u1ec9 v\u1edbi kho\u1ea3ng 2.000 VND\/ng\u00e0y nh\u01b0ng s\u1ebd gi\u00fap x\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc v\u1eefng ch\u1eafc cho tr\u1ebb em t\u1ed1t h\u01a1n, cha m\u1eb9 c\u00f3 th\u1ec3 c\u1ea3m th\u1ea5y an to\u00e0n khi \u0111\u1ea7u t\u01b0 v\u00e0o s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng n\u00e0y cho tr\u1ebb em.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia.monkeyuni.net\/upload\/web\/img\/nhantuvanmienphi.png\" alt=\"\" width=\"185\" height=\"36\"><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><a href=\"https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS<\/a><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hoc_toan_KM2_bang_cach_hieu_ly_thuyet\"><\/span>H\u1ecdc to\u00e1n KM2 b\u1eb1ng c\u00e1ch hi\u1ec3u l\u00fd thuy\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 c\u00f3 th\u1ec3 chinh ph\u1ee5c c\u00e1c b\u00e0i t\u1eadp, c\u0169ng nh\u01b0 \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf \u0111\u00f2i h\u1ecfi m\u1ecdi ng\u01b0\u1eddi<em>T\u00f4i hi\u1ec3u nh\u1eefng g\u00ec l\u00e0 km vu\u00f4ng, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 thay \u0111\u1ed5i c\u00e1c \u0111\u01a1n v\u1ecb, c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp ph\u1ed5 bi\u1ebfn &#8230;<\/em> Ch\u1ec9 khi b\u1ea1n th\u00e0nh th\u1ea1o l\u00fd thuy\u1ebft n\u00e0y, con b\u1ea1n s\u1ebd t\u1ef1 tin h\u01a1n khi gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hoc_voi_thuc_tien_la_dieu_can_thiet\"><\/span>H\u1ecdc v\u1edbi th\u1ef1c ti\u1ec5n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Sau khi \u0111\u1ee9a tr\u1ebb th\u00e0nh th\u1ea1o l\u00fd thuy\u1ebft v\u1ec1 \u0111\u01a1n v\u1ecb KM2, cha m\u1eb9 c\u1ea7n th\u1ef1c h\u00e0nh ng\u00e0y c\u00e0ng nhi\u1ec1u <em>Ho\u00e0n th\u00e0nh c\u00e1c b\u00e0i t\u1eadp trong s\u00e1ch gi\u00e1o khoa, b\u00e0i t\u1eadp, gi\u00e1o vi\u00ean b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 \u0111\u01b0\u1ee3c giao, c\u00e1c tr\u00f2 ch\u01a1i li\u00ean quan \u0111\u1ebfn t\u1ed5 ch\u1ee9c, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, t\u00ecm hi\u1ec3u th\u00eam ki\u1ebfn \u200b\u200bth\u1ee9c m\u1edbi tr\u00ean Internet &#8230;.<\/em><\/p>\n<p dir=\"ltr\">\u0110\u00f3 l\u00e0 th\u1ef1c ti\u1ec5n s\u1ebd gi\u00fap tr\u1ebb nh\u1edb l\u00fd thuy\u1ebft l\u00e2u h\u01a1n, c\u0169ng nh\u01b0 k\u00edch th\u00edch kh\u1ea3 n\u0103ng suy ngh\u0129 c\u1ee7a tr\u1ebb khi h\u1ecdc to\u00e1n v\u1eefng ch\u1eafc h\u01a1n.<\/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\/ki-lo-met-vuong-5.jpg\" alt=\"T\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho con b\u1ea1n th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_bai_tap_met_vuong_cho_em_be_cua_ban\"><\/span>M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp m\u00e9t vu\u00f4ng cho em b\u00e9 c\u1ee7a b\u1ea1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn \u0111\u01a1n v\u1ecb c\u1ee7a KM2 \u0111\u1ec3 ch\u00fang c\u00f3 th\u1ec3 th\u1ef1c h\u00e0nh:<\/p>\n<p dir=\"ltr\">C\u00e2u 1: Kilogram vu\u00f4ng \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u:<\/p>\n<p dir=\"ltr\">A.Cm2<\/p>\n<p dir=\"ltr\">B.DM2<\/p>\n<p dir=\"ltr\">C.M2<\/p>\n<p dir=\"ltr\">D.KM2<\/p>\n<p dir=\"ltr\">C\u00e2u 2: \u0110i\u1ec1n v\u00e0o s\u1ed1 th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m:<\/p>\n<p dir=\"ltr\">Km vu\u00f4ng l\u00e0 di\u1ec7n t\u00edch c\u1ee7a qu\u1ea3ng tr\u01b0\u1eddng v\u1edbi c\u00e1c c\u1ea1nh &#8230; km<\/p>\n<p dir=\"ltr\">C\u00e2u 3: 1km2 b\u1eb1ng v\u1edbi bao nhi\u00eau m2<\/p>\n<p dir=\"ltr\">A. 1000<\/p>\n<p dir=\"ltr\">B. 10000<\/p>\n<p dir=\"ltr\">C. 100000<\/p>\n<p dir=\"ltr\">D. 1000000<\/p>\n<p dir=\"ltr\">C\u00e2u 4: 1508km2 \u0110\u1ecdc:<\/p>\n<p dir=\"ltr\">A. M\u1ed9t ngh\u00ecn n\u0103m tr\u0103m t\u00e1m m\u01b0\u01a1i km vu\u00f4ng<\/p>\n<p dir=\"ltr\">B. M\u1ed9t ngh\u00ecn n\u0103m tr\u0103m t\u00e1m km vu\u00f4ng<\/p>\n<p dir=\"ltr\">C. M\u1ed9t ngh\u00ecn n\u0103m tr\u0103m t\u00e1m km vu\u00f4ng<\/p>\n<p dir=\"ltr\">D. M\u1ed9t ngh\u00ecn n\u0103m tr\u0103m kh\u00f4ng t\u00e1m km vu\u00f4ng<\/p>\n<p dir=\"ltr\">C\u00e2u 5: 7km2 825m2 = &#8230; M2.<\/p>\n<p dir=\"ltr\">S\u1ed1 th\u00edch h\u1ee3p \u0111\u01b0\u1ee3c \u0111i\u1ec1n v\u00e0o d\u1ea5u ch\u1ea5m l\u00e0:<\/p>\n<p dir=\"ltr\">A. 7000825<\/p>\n<p dir=\"ltr\">B. 700825<\/p>\n<p dir=\"ltr\">C. 78250<\/p>\n<p dir=\"ltr\">D. 7825<\/p>\n<p dir=\"ltr\">C\u00e2u 6: M\u1ed9t khu r\u1eebng h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 chi\u1ec1u d\u00e0i 5km, chi\u1ec1u r\u1ed9ng 2400m. C\u00f3 bao nhi\u00eau kg vu\u00f4ng c\u1ee7a khu v\u01b0\u1eddn?<\/p>\n<p dir=\"ltr\">C\u00e2u 7: H\u1ed3 West c\u00f3 di\u1ec7n t\u00edch kho\u1ea3ng 5km2 v\u00e0 HO Guom c\u00f3 \u200b\u200bdi\u1ec7n t\u00edch kho\u1ea3ng 120000m2. H\u1ecfi h\u1ed3 n\u00e0o l\u1edbn h\u01a1n v\u00e0 l\u1edbn h\u01a1n bao nhi\u00eau m\u00e9t vu\u00f4ng?<\/p>\n<p dir=\"ltr\">C\u00e2u 8: V\u01b0\u1eddn Longan c\u1ee7a ch\u00fa Hung c\u00f3 di\u1ec7n t\u00edch 1km2. Trong ph\u00e2n b\u00f3n g\u1ea7n \u0111\u00e2y, ch\u00fa Hel \u0111\u00e3 t\u00ednh to\u00e1n r\u1eb1ng m\u1ecdi g\u1ed1c c\u1ee7a longan \u0111\u00e3 th\u1ee5 tinh 200g ph\u1ed1t pho. C\u00f3 bao nhi\u00eau t\u1ea5n ph\u00e2n b\u00f3n ph\u1ed1t ph\u00e1t trong nh\u00e3n c\u1ee7a ch\u00fa Hung \u0111\u01b0\u1ee3c th\u1ee5 tinh? Bi\u1ebft m\u1ed7i 10m^2, tr\u1ed3ng 1 g\u1ed1c c\u1ee7a longan.<\/p>\n<p dir=\"ltr\">C\u00e2u 9: Vi\u1ebft s\u1ed1 th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m:<\/p>\n<p dir=\"ltr\">A) 93 100cm2 = &#8230; DM2                         <\/p>\n<p dir=\"ltr\">b) 6300dm2 = &#8230; M2<\/p>\n<p dir=\"ltr\">c) 5 000Oom2 = &#8230; km2                 <\/p>\n<p dir=\"ltr\">d) 10000000m2 = &#8230; km2<\/p>\n<p dir=\"ltr\">E0 430dm2 = &#8230; M2 &#8230; DM2                    <\/p>\n<p dir=\"ltr\">g) 1 000 325m2 = &#8230; km2 &#8230; m2<\/p>\n<p dir=\"ltr\">C\u00e2u 10: \u0110i\u1ec1n v\u00e0o con d\u1ea5u&gt;, &lt;, = ph\u00f9 h\u1ee3p v\u1edbi d\u1ea5u ch\u1ea5m<\/p>\n<p dir=\"ltr\">a) 12 km2 &#8230; 10m2 5 km2<\/p>\n<p dir=\"ltr\">b) 627 km2 34 m2 &#8230; 684000 m2 63 km2<\/p>\n<p dir=\"ltr\">c) 165 km2 &#8230; 165000 m2<\/p>\n<p dir=\"ltr\">D) 2 km2 20m2 &#8230; 15 km2<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\" style=\"line-height: 1.7999999999999998;text-align: justify;margin-top: 12pt;margin-bottom: 12pt\">Tr\u00ean \u0111\u00e2y l\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n c\u1ee7a \u0111\u01a1n v\u1ecb m\u00e9t vu\u00f4ng chi ti\u1ebft nh\u1ea5t. Hy v\u1ecdng, v\u1edbi vi\u1ec7c chia s\u1ebb \u1edf tr\u00ean, m\u1ecdi ng\u01b0\u1eddi ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 h\u1ecdc c\u00e1ch \u00e1p d\u1ee5ng trong h\u1ecdc t\u1eadp, gi\u1ea3i quy\u1ebft to\u00e1n ho\u1eb7c \u00e1p d\u1ee5ng ch\u00ednh x\u00e1c h\u01a1n.<\/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>Kilomet vu\u00f4ng l\u00e0 m\u1ed9t \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng quen thu\u1ed9c, c\u0169ng nh\u01b0 b\u1eaft \u0111\u1ea7u ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 4, h\u1ecd s\u1ebd h\u1ecdc v\u00e0 l\u00e0m quen. Ngo\u00e0i vi\u1ec7c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u01a1n v\u1ecb kho\u1ea3ng c\u00e1ch v\u00e0 kho\u1ea3ng c\u00e1ch, \u0111\u01a1n v\u1ecb c\u1ee7a KM2 c\u0169ng c\u00f3 nhi\u1ec1u \u0111i\u1ec1u th\u00fa v\u1ecb, h\u00e3y \u0111\u1ec3 Kh\u1ec9 t\u00ecm hi\u1ec3u th\u00eam trong b\u00e0i&#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-16592","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/16592","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=16592"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/16592\/revisions"}],"predecessor-version":[{"id":23069,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/16592\/revisions\/23069"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=16592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=16592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=16592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}