{"id":21738,"date":"2025-07-08T19:55:52","date_gmt":"2025-07-08T12:55:52","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=21738"},"modified":"2025-07-11T16:05:28","modified_gmt":"2025-07-11T09:05:28","slug":"goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/","title":{"rendered":"G\u1ee3i \u00fd c\u00e1ch h\u1ecdc to\u00e1n d\u1ea1ng so s\u00e1nh h\u01a1n k\u00e9m l\u1edbp 3 \u0111\u01a1n gi\u1ea3n b\u00e9 n\u00e0o c\u0169ng n\u00ean bi\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\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Mot_toan_hoc_so_sanh_truoc_day_so_voi_lop_3_la_gi\" >M\u1ed9t to\u00e1n h\u1ecdc so s\u00e1nh tr\u01b0\u1edbc \u0111\u00e2y so v\u1edbi l\u1edbp 3 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\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Mot_so_van_de_so_sanh_lop_3_pho_bien_nhat\" >M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 so s\u00e1nh l\u1edbp 3 ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Kiem_tra_so_luong_lon_hon_nhieu_lan_so_voi_so_luong_tre_em\" >Ki\u1ec3m tra s\u1ed1 l\u01b0\u1ee3ng l\u1edbn h\u01a1n nhi\u1ec1u l\u1ea7n so v\u1edbi s\u1ed1 l\u01b0\u1ee3ng tr\u1ebb em<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Toan_so_sanh_kem_hon_lop_3_duoi_dang_toan_hoc_cau_do\" >To\u00e1n so s\u00e1nh k\u00e9m h\u01a1n l\u1edbp 3 d\u01b0\u1edbi d\u1ea1ng to\u00e1n h\u1ecdc c\u00e2u \u0111\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Mau_toan_hoc_so_sanh_lop_3_cho_hinh_hoc\" >M\u1eabu to\u00e1n h\u1ecdc so s\u00e1nh l\u1edbp 3 cho h\u00ecnh h\u1ecdc<\/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\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Van_de_so_sanh_lop_3_voi_don_vi\" >V\u1ea5n \u0111\u1ec1 so s\u00e1nh l\u1edbp 3 v\u1edbi \u0111\u01a1n v\u1ecb<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Bi_quyet_de_giup_tre_hoc_toan_so_sanh_hon_voi_lop_3_hieu_qua\" >B\u00ed quy\u1ebft \u0111\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n so s\u00e1nh h\u01a1n v\u1edbi l\u1edbp 3 hi\u1ec7u qu\u1ea3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Hay_chac_chan_rang_em_be_cua_ban_co_kien_%E2%80%8B%E2%80%8Bthuc_co_ban_ve_lop_3\" >H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng em b\u00e9 c\u1ee7a b\u1ea1n c\u00f3 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 l\u1edbp 3<\/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\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Ap_dung_cac_hinh_thuc_toan_so_sanh_hon_lop_3_kem_hon_thuc_te\" >\u00c1p d\u1ee5ng c\u00e1c h\u00ecnh th\u1ee9c to\u00e1n so s\u00e1nh h\u01a1n l\u1edbp 3 k\u00e9m h\u01a1n th\u1ef1c t\u1ebf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Ket_hop_voi_em_be_cua_ban_de_choi_cac_tro_choi_so_sanh\" >K\u1ebft h\u1ee3p v\u1edbi em b\u00e9 c\u1ee7a b\u1ea1n \u0111\u1ec3 ch\u01a1i c\u00e1c tr\u00f2 ch\u01a1i so s\u00e1nh<\/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\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Cho_em_be_cua_ban_thuong_xuyen_thuc_hanh_cac_bieu_mau_so_sanh\" >Cho em b\u00e9 c\u1ee7a b\u1ea1n th\u01b0\u1eddng xuy\u00ean th\u1ef1c h\u00e0nh c\u00e1c bi\u1ec3u m\u1eabu so s\u00e1nh<\/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\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Hoc_cach_so_sanh_toan_voi_lop_3_mot_cach_hieu_qua_voi_toan_hoc\" >H\u1ecdc c\u00e1ch so s\u00e1nh to\u00e1n v\u1edbi l\u1edbp 3 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u1edbi to\u00e1n h\u1ecdc<\/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\/goi-y-cach-hoc-toan-dang-so-sanh-hon-kem-lop-3-don-gian-be-nao-cung-nen-biet\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>So s\u00e1nh d\u01b0\u1edbi l\u1edbp 3 l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n trong ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c m\u1edbi ng\u00e0y nay. Nghe c\u00f3 v\u1ebb nh\u01b0 m\u1ed9t v\u1ea5n \u0111\u1ec1 so s\u00e1nh l\u1edbp 3 l\u00e0 kh\u00e1 d\u1ec5 d\u00e0ng nh\u01b0ng v\u1eabn c\u00f2n nhi\u1ec1u tr\u1ebb em l\u00e0m sai, d\u1eabn \u0111\u1ebfn \u0111i\u1ec3m k\u00e9m.<\/p>\n<p>V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap con b\u1ea1n t\u00ecm hi\u1ec3u lo\u1ea1i so s\u00e1nh n\u00e0y v\u1edbi l\u1edbp 3 n\u00e0y, h\u00e3y \u0111\u1ec3 Kh\u1ec9 kh\u00e1m ph\u00e1 nh\u1eefng b\u00ed m\u1eadt sau \u0111\u00e2y.<\/p>\n<p>                                    <\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mot_toan_hoc_so_sanh_truoc_day_so_voi_lop_3_la_gi\"><\/span>M\u1ed9t to\u00e1n h\u1ecdc so s\u00e1nh tr\u01b0\u1edbc \u0111\u00e2y so v\u1edbi l\u1edbp 3 l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>So s\u00e1nh l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i b\u00e0i t\u1eadp r\u1ea5t ph\u1ed5 bi\u1ebfn trong to\u00e1n h\u1ecdc, \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 3. Tr\u1ebb em s\u1ebd so s\u00e1nh gi\u1eefa 2 s\u1ed1, l\u1edbn h\u01a1n, nh\u1ecf h\u01a1n.<\/p>\n<p>M\u1edf r\u1ed9ng, tr\u1ebb em s\u1ebd ph\u1ea3i so s\u00e1nh c\u00e1c t\u00ednh to\u00e1n, ph\u00e2n s\u1ed1, &#8230; trong \u0111\u00f3, ba d\u1ea5u hi\u1ec7u c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 l\u1edbn h\u01a1n (&gt;), nh\u1ecf h\u01a1n (&lt;) v\u00e0 b\u1eb1ng (=).<\/p>\n<p>V\u00ed d\u1ee5: So s\u00e1nh 2 t\u00ednh to\u00e1n: 8 x 3 &#8230; 10 + 14<\/p>\n<p>\u2192 Tr\u1ea3 l\u1eddi: 8 x 3 = 10 + 14 (v\u00ec 8 x 3 = 24 v\u00e0 10 + 14 = 24)<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/1-so-sanh-hon-kem-lop-3.jpg\" alt=\"T\u00ecm hi\u1ec3u v\u1ec1 \u0111\u1ecbnh d\u1ea1ng to\u00e1n h\u1ecdc so s\u00e1nh. (\u1ea2nh: Itoan)\" width=\"100%\"><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mot_so_van_de_so_sanh_lop_3_pho_bien_nhat\"><\/span>M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 so s\u00e1nh l\u1edbp 3 ph\u1ed5 bi\u1ebfn nh\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 3, hi\u1ec7n t\u1ea1i c\u00f3 m\u1ed9t s\u1ed1 bi\u1ec3u m\u1eabu so s\u00e1nh lo\u1ea1i 3 ph\u1ed5 bi\u1ebfn nh\u1ea5t:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kiem_tra_so_luong_lon_hon_nhieu_lan_so_voi_so_luong_tre_em\"><\/span>Ki\u1ec3m tra s\u1ed1 l\u01b0\u1ee3ng l\u1edbn h\u01a1n nhi\u1ec1u l\u1ea7n so v\u1edbi s\u1ed1 l\u01b0\u1ee3ng tr\u1ebb em<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed1i v\u1edbi lo\u1ea1i b\u00e0i t\u1eadp n\u00e0y, tr\u1ebb s\u1ebd m\u1ea5t m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn \u0111\u1ec3 chia cho s\u1ed1 tr\u1ebb em khi 2 s\u1ed1 v\u00e0 1 \u0111\u01a1n v\u1ecb \u0111o \u0111\u1ec3 bi\u1ebft s\u1ed1 l\u1ea7n l\u1edbn h\u01a1n s\u1ed1 tr\u1ebb em.<\/p>\n<p>V\u00ed d\u1ee5, c\u00f3 3 qu\u1ea3 l\u00ea v\u00e0 9 qu\u1ea3 t\u00e1o. H\u1ecfi xem s\u1ed1 l\u01b0\u1ee3ng t\u00e1o l\u00e0 bao nhi\u00eau l\u1ea7n?<\/p>\n<p>\u2192 Tr\u1ea3 l\u1eddi: V\u00ec 9: 3 = 3 (3 l\u1ea7n), s\u1ed1 l\u01b0\u1ee3ng t\u00e1o g\u1ea5p 3 l\u1ea7n s\u1ed1 l\u01b0\u1ee3ng l\u00ea.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Toan_so_sanh_kem_hon_lop_3_duoi_dang_toan_hoc_cau_do\"><\/span>To\u00e1n so s\u00e1nh k\u00e9m h\u01a1n l\u1edbp 3 d\u01b0\u1edbi d\u1ea1ng to\u00e1n h\u1ecdc c\u00e2u \u0111\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c so s\u00e1nh r\u1ea5t ph\u1ed5 bi\u1ebfn r\u1ea5t ph\u1ed5 bi\u1ebfn, nh\u01b0ng v\u1ea5n \u0111\u1ec1 s\u1ebd cho gi\u00e1 tr\u1ecb c\u1ee7a 2 \u0111\u1ea1i l\u01b0\u1ee3ng v\u00e0 y\u00eau c\u1ea7u t\u00ecm hi\u1ec3u gi\u00e1 tr\u1ecb l\u1edbn h\u01a1n s\u1ed1 l\u01b0\u1ee3ng c\u00f2n l\u1ea1i.<\/p>\n<p>Khi g\u1eb7p lo\u1ea1i b\u00e0i t\u1eadp n\u00e0y, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/2-so-sanh-hon-kem-lop-3.jpg\" alt=\"Ch\u00fang ta h\u00e3y h\u1ecdc so s\u00e1nh to\u00e1n v\u1edbi to\u00e1n h\u1ecdc. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li>\u0110\u1ecdc v\u00e0 ph\u00e2n t\u00edch ch\u1ee7 \u0111\u1ec1<\/li>\n<li>Chia m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn cho tr\u1ebb em \u0111\u1ec3 bi\u1ebft s\u1ed1 l\u1ea7n l\u1edbn h\u01a1n tr\u1ebb em<\/li>\n<li>Tr\u00ecnh b\u00e0y c\u00e2u tr\u1ea3 l\u1eddi, t\u00ednh to\u00e1n v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi<\/li>\n<li>Ki\u1ec3m tra k\u1ebft qu\u1ea3<\/li>\n<\/ul>\n<p>V\u00ed d\u1ee5: Trong v\u01b0\u1eddn c\u00f3 30 c\u00e2y l\u00ea v\u00e0 10 c\u00e2y m\u00e0u cam. Bao nhi\u00eau l\u1ea7n c\u00e2y cam l\u00e0 bao nhi\u00eau qu\u1ea3 l\u00ea?<\/p>\n<p>\u2192 Tr\u1ea3 l\u1eddi:<\/p>\n<p>S\u1ed1 l\u01b0\u1ee3ng c\u00e2y l\u00ea l\u00e0 m\u1ed9t s\u1ed1 c\u00e2y m\u00e0u cam l\u00e0:<\/p>\n<p>30: 10 = 3 (l\u1ea7n)<\/p>\n<p>Tr\u1ea3 l\u1eddi: 3 l\u1ea7n<\/p>\n<p>T\u00ecm hi\u1ec3u th\u00eam: T\u00f3m t\u1eaft c\u00e1c h\u00ecnh th\u1ee9c c\u1ee7a c\u00e1c b\u00e0i t\u1eadp to\u00e1n l\u1edbp 3 cho h\u1ecdc k\u1ef3 1 v\u00e0 2, nh\u1eefng \u0111\u1ee9a tr\u1ebb mu\u1ed1n h\u1ecdc t\u1eadp t\u1ed1t<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mau_toan_hoc_so_sanh_lop_3_cho_hinh_hoc\"><\/span>M\u1eabu to\u00e1n h\u1ecdc so s\u00e1nh l\u1edbp 3 cho h\u00ecnh h\u1ecdc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u00ecnh th\u1ee9c c\u1ee7a b\u00e0i t\u1eadp so s\u00e1nh t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c to\u00e1n h\u1ecdc so s\u00e1nh kh\u00e1c. Tuy nhi\u00ean, c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0 h\u00ecnh h\u1ecdc.<\/p>\n<p>V\u1ea5n \u0111\u1ec1 s\u1ebd y\u00eau c\u1ea7u tr\u1ebb em xem chu vi c\u1ee7a chu vi n\u00e0y bao nhi\u00eau l\u1ea7n. Theo \u0111\u00f3, tr\u1ebb c\u1ea7n t\u00ednh chu vi c\u1ee7a m\u1ed7i h\u00ecnh \u1ea3nh v\u00e0 sau \u0111\u00f3 l\u1ea5y chu vi l\u1edbn \u0111\u1ec3 chia cho chu vi c\u1ee7a em b\u00e9 \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3.<\/p>\n<p>V\u00ed d\u1ee5, m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 chi\u1ec1u d\u00e0i 5cm, chi\u1ec1u r\u1ed9ng 3cm. Qu\u1ea3ng tr\u01b0\u1eddng c\u00f3 2 cm. H\u1ecfi bao nhi\u00eau l\u1ea7n chu vi c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt l\u00e0 chu vi vu\u00f4ng?<\/p>\n<p>\u2192 Tr\u1ea3 l\u1eddi:<\/p>\n<p>Chu vi c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt l\u00e0:<\/p>\n<p>(5 + 3) x 2 = 16 (cm)<\/p>\n<p>Chu vi vu\u00f4ng l\u00e0: <\/p>\n<p>2 x 4 = 8 (cm)<\/p>\n<p>Chu vi c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt l\u00e0 s\u1ed1 l\u1ea7n chu vi vu\u00f4ng l\u00e0:<\/p>\n<p>16: 8 = 2 (l\u1ea7n)<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Van_de_so_sanh_lop_3_voi_don_vi\"><\/span>V\u1ea5n \u0111\u1ec1 so s\u00e1nh l\u1edbp 3 v\u1edbi \u0111\u01a1n v\u1ecb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lo\u1ea1i to\u00e1n h\u1ecdc so s\u00e1nh nh\u1ecf h\u01a1n l\u1edbp 3 n\u00e0y s\u1ebd y\u00eau c\u1ea7u tr\u1ebb so s\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn \u0111\u01a1n v\u1ecb \u0111o chi\u1ec1u d\u00e0i v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/3-so-sanh-hon-kem-lop-3.jpg\" alt=\"C\u00e1c b\u00e0i t\u1eadp so s\u00e1nh v\u1ec1 \u0111\u01a1n v\u1ecb. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p>V\u00ed d\u1ee5, v\u1ea3i \u0111\u1ea7u ti\u00ean d\u00e0i 15m, v\u1ea3i th\u1ee9 hai d\u00e0i 5m. H\u1ecfi v\u1ea3i \u0111\u1ea7u ti\u00ean bao nhi\u00eau l\u1ea7n v\u1ea3i th\u1ee9 hai?<\/p>\n<p>\u2192 Tr\u1ea3 l\u1eddi: <\/p>\n<p>V\u1ea3i \u0111\u1ea7u ti\u00ean l\u00e0 s\u1ed1 l\u1ea7n v\u1ea3i th\u1ee9 hai l\u00e0:<\/p>\n<p>15: 5 = 3 (l\u1ea7n)<\/p>\n<p class=\"MsoNormal\" style=\"line-height: 150%\">\n<h2><span class=\"ez-toc-section\" id=\"Bi_quyet_de_giup_tre_hoc_toan_so_sanh_hon_voi_lop_3_hieu_qua\"><\/span>B\u00ed quy\u1ebft \u0111\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n so s\u00e1nh h\u01a1n v\u1edbi l\u1edbp 3 hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>V\u1ea5n \u0111\u1ec1 so s\u00e1nh l\u1edbp 3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c kh\u00f3 kh\u0103n. Tuy nhi\u00ean, n\u1ebfu kh\u00f4ng c\u00f3 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e0o t\u1ea1o c\u1ee5 th\u1ec3, em b\u00e9 r\u1ea5t d\u1ec5 b\u1ecb nh\u1ea7m l\u1eabn. Do \u0111\u00f3, sau \u0111\u00e2y s\u1ebd l\u00e0 m\u1ed9t v\u00e0i ph\u01b0\u01a1ng ph\u00e1p so s\u00e1nh hi\u1ec7u qu\u1ea3 cho tr\u1ebb em.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hay_chac_chan_rang_em_be_cua_ban_co_kien_%E2%80%8B%E2%80%8Bthuc_co_ban_ve_lop_3\"><\/span>H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng em b\u00e9 c\u1ee7a b\u1ea1n c\u00f3 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 l\u1edbp 3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 tr\u1ebb em l\u00e0m t\u1ed1t c\u00e1c b\u00e0i t\u1eadp so s\u00e1nh t\u1ed1t h\u01a1n l\u1edbp 3, ph\u1ee5 huynh c\u1ea7n \u0111\u1ea3m b\u1ea3o ch\u00fang l\u00e0m ch\u1ee7 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n. B\u1edfi v\u00ec khi tr\u1ebb l\u00e0m ch\u1ee7 ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c b\u00e0i t\u1eadp m\u1ed9t c\u00e1ch linh ho\u1ea1t.<\/p>\n<p>Khi \u0111\u1ee9a tr\u1ebb kh\u00f4ng th\u00e0nh th\u1ea1o ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n, cha m\u1eb9 ho\u00e0n to\u00e0n kh\u00f4ng bu\u1ed9c con c\u00e1i ph\u1ea3i nghi\u00ean c\u1ee9u c\u00e1c ph\u1ea7n kh\u00e1c, tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p tr\u1ebb h\u1ecdc ch\u01a1i. \u0110i\u1ec1u n\u00e0y s\u1ebd khi\u1ebfn tr\u1ebb h\u1ecdc kh\u00f4ng hi\u1ec7u qu\u1ea3, th\u1eadm ch\u00ed kh\u00f4ng hi\u1ec3u v\u00e0 s\u1ee3 h\u1ecdc to\u00e1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ap_dung_cac_hinh_thuc_toan_so_sanh_hon_lop_3_kem_hon_thuc_te\"><\/span>\u00c1p d\u1ee5ng c\u00e1c h\u00ecnh th\u1ee9c to\u00e1n so s\u00e1nh h\u01a1n l\u1edbp 3 k\u00e9m h\u01a1n th\u1ef1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ngo\u00e0i ph\u01b0\u01a1ng ph\u00e1p d\u1ea1y tr\u1ebb h\u1ecdc ki\u1ebfn \u200b\u200bth\u1ee9c m\u1ed9t ph\u1ea7n, cha m\u1eb9 c\u0169ng n\u00ean \u0111\u1ea3m b\u1ea3o c\u00e1c b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn th\u1ef1c h\u00e0nh \u0111\u1ec3 khi h\u1ecdc tr\u1ebb c\u1ea3m th\u1ea5y g\u1ea7n g\u0169i v\u00e0 quen thu\u1ed9c.<\/p>\n<p>B\u1edfi v\u00ec ki\u1ebfn \u200b\u200bth\u1ee9c m\u00e0 ch\u1ec9 truy\u1ec1n \u0111\u1ea1t trong l\u00fd thuy\u1ebft s\u1ebd r\u1ea5t kh\u00f4, \u0111\u00f4i khi c\u1ee9ng nh\u1eafc, khi\u1ebfn n\u00f3 kh\u00f4ng hi\u1ec3u.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/so-sanh-hon-kem-lop-3-01.jpg\" alt=\"\u00c1p d\u1ee5ng c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc v\u1edbi c\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"800\" height=\"534\"><\/p>\n<p>N\u1ebfu cha m\u1eb9 \u00e1p d\u1ee5ng to\u00e1n h\u1ecdc v\u1edbi c\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf s\u1ed1ng \u0111\u1ed9ng, h\u1ecd s\u1ebd gi\u00fap h\u1ecd c\u1ea3m th\u1ea5y g\u1ea7n g\u0169i h\u01a1n v\u00e0 d\u1ec5 hi\u1ec3u h\u01a1n. V\u00ed d\u1ee5, cha m\u1eb9 c\u00f3 th\u1ec3 \u0111\u01b0a ra v\u1ea5n \u0111\u1ec1 so s\u00e1nh sau:<\/p>\n<p>T\u00f4i c\u00f3 10 vi\u00ean k\u1eb9o, t\u00f4i cho b\u1ea1n 2. H\u1ecfi k\u1eb9o c\u00f2n l\u1ea1i c\u1ee7a ng\u01b0\u1eddi m\u1eb9 s\u1ed1 l\u1ea7n s\u1ed1 k\u1eb9o c\u1ee7a \u0111\u1ee9a tr\u1ebb bao nhi\u00eau l\u1ea7n?<\/p>\n<p>\u2192 Tr\u1ea3 l\u1eddi:<\/p>\n<p>K\u1eb9o c\u00f2n l\u1ea1i c\u1ee7a ng\u01b0\u1eddi m\u1eb9 l\u00e0: <\/p>\n<p>10 &#8211; 2 = 8 (k\u1eb9o)<\/p>\n<p>S\u1ed1 l\u01b0\u1ee3ng k\u1eb9o c\u1ee7a ng\u01b0\u1eddi m\u1eb9 l\u00e0 s\u1ed1 l\u1ea7n s\u1ed1 l\u01b0\u1ee3ng k\u1eb9o l\u00e0:<\/p>\n<p>8: 2 = 4 (l\u1ea7n)<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ket_hop_voi_em_be_cua_ban_de_choi_cac_tro_choi_so_sanh\"><\/span>K\u1ebft h\u1ee3p v\u1edbi em b\u00e9 c\u1ee7a b\u1ea1n \u0111\u1ec3 ch\u01a1i c\u00e1c tr\u00f2 ch\u01a1i so s\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p kh\u00e1 h\u1eefu \u00edch kh\u00e1c m\u00e0 ph\u1ee5 huynh n\u00ean \u00e1p d\u1ee5ng khi d\u1ea1y tr\u1ebb h\u1ecdc to\u00e1n so s\u00e1nh nhi\u1ec1u h\u01a1n so v\u1edbi l\u1edbp 3 l\u00e0 ch\u01a1i tr\u00f2 ch\u01a1i v\u1edbi tr\u1ebb em.<\/p>\n<p>Vi\u1ec7c \u00e1p d\u1ee5ng m\u1ed9t tr\u00f2 ch\u01a1i so s\u00e1nh c\u1ea3 hai gi\u00fap tr\u1ebb kh\u00f4ng c\u1ea3m th\u1ea5y \u00e1p l\u1ef1c v\u00e0 gi\u00fap tr\u1ebb c\u00f3 \u0111\u01b0\u1ee3c ki\u1ebfn \u200b\u200bth\u1ee9c nhanh h\u01a1n. <\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cho_em_be_cua_ban_thuong_xuyen_thuc_hanh_cac_bieu_mau_so_sanh\"><\/span>Cho em b\u00e9 c\u1ee7a b\u1ea1n th\u01b0\u1eddng xuy\u00ean th\u1ef1c h\u00e0nh c\u00e1c bi\u1ec3u m\u1eabu so s\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To\u00e1n h\u1ecdc kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u00f4n h\u1ecdc ghi nh\u1edb, v\u00ec v\u1eady th\u1ef1c ti\u1ec5n l\u00e0 r\u1ea5t quan tr\u1ecdng. Cha m\u1eb9 c\u1ea7n cho con c\u00e1i th\u1ef1c h\u00e0nh c\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng xuy\u00ean, h\u1ecd c\u00f3 th\u1ec3 nh\u1edb c\u00e1c c\u00f4ng th\u1ee9c v\u00e0 l\u00fd thuy\u1ebft trong m\u1ed9t th\u1eddi gian d\u00e0i.<\/p>\n<p>V\u00e0 ngo\u00e0i c\u00e1c b\u00e0i t\u1eadp c\u01a1 b\u1ea3n, ph\u1ee5 huynh c\u00f3 th\u1ec3 \u0111\u01b0a ra c\u00e1c b\u00e0i t\u1eadp b\u1ed5 sung n\u00e2ng cao cho con c\u00e1i c\u1ee7a h\u1ecd d\u1ea7n d\u1ea7n c\u1ea3i thi\u1ec7n suy ngh\u0129 v\u00e0 logic c\u1ee7a ch\u00fang.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hoc_cach_so_sanh_toan_voi_lop_3_mot_cach_hieu_qua_voi_toan_hoc\"><\/span>H\u1ecdc c\u00e1ch so s\u00e1nh to\u00e1n v\u1edbi l\u1edbp 3 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u1edbi to\u00e1n h\u1ecdc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Mu\u1ed1n tr\u1ebb h\u1ecdc to\u00e1n so s\u00e1nh nhi\u1ec1u h\u01a1n so v\u1edbi l\u1edbp 3 n\u00f3i ri\u00eang v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh ch\u00ednh to\u00e1n h\u1ecdc n\u00f3i chung, ph\u1ee5 huynh n\u00ean \u0111\u1ec3 tr\u1ebb h\u1ecdc v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9.<\/p>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc \u0111\u01b0\u1ee3c nhi\u1ec1u ph\u1ee5 huynh tin t\u01b0\u1edfng. To\u00e1n Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef \u0111\u00e3 gi\u00fap h\u00e0ng ng\u00e0n tr\u1ebb em c\u00f3 th\u1ec3 h\u1ecdc to\u00e1n t\u1ed1t v\u00e0 kh\u00f4ng c\u1ea3m th\u1ea5y to\u00e1n h\u1ecdc kh\u00f4 khan v\u00e0 c\u1ee9ng nh\u1eafc.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/so-sanh-hon-kem-lop-3-02.jpg\" alt=\"S\u1eed d\u1ee5ng to\u00e1n h\u1ecdc Shining Home - Gia \u0111\u00ecnh Anh Ng\u1eef gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n hi\u1ec7u qu\u1ea3 h\u01a1n. (\u1ea2nh: Kh\u1ec9)\" width=\"800\" height=\"450\"><\/p>\n<p>B\u1edfi v\u00ec c\u00e1c s\u1ea3n ph\u1ea9m to\u00e1n h\u1ecdc kh\u1ec9 c\u00f3 c\u00e1c b\u00e0i t\u1eadp tr\u00ean \u0111\u1ed3 h\u1ecda s\u1ed1ng \u0111\u1ed9ng, d\u1ec5 d\u00e0ng v\u00e0 d\u1ec5 hi\u1ec3u -d\u1ec5 hi\u1ec3u, tr\u1ebb em s\u1ebd r\u1ea5t ph\u1ea5n kh\u00edch v\u00e0 h\u1ea5p th\u1ee5 kh\u00e1 nhanh.<\/p>\n<p>\u0110\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c b\u00e0i h\u1ecdc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi 3 c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau, ph\u00f9 h\u1ee3p cho m\u1ed7i c\u1ea5p \u0111\u1ed9 c\u1ee7a em b\u00e9. Ngo\u00e0i c\u00e1c tr\u00f2 ch\u01a1i gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math c\u0169ng mang \u0111\u1ebfn nhi\u1ec1u b\u00e0i t\u1eadp b\u1ed5 sung r\u1ea5t h\u1eefu \u00edch cho tr\u1ebb \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng khi h\u1ecdc to\u00e1n.<\/p>\n<p style=\"margin: 0px 0px 22px;color: #4e4c50;font-size: 16px;background-color: #ffffff\">\u0110\u1ec3 t\u1ea3i xu\u1ed1ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math m\u00e0 ph\u1ee5 huynh c\u00f3 th\u1ec3 truy c\u1eadp:<\/p>\n<ul style=\"margin: 1em 0px;padding: 0px 0px 0px 40px;color: #4e4c50;font-size: 16px;background-color: #ffffff\">\n<li style=\"margin: 0px\">T\u1ea3i xu\u1ed1ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i Android<\/li>\n<li style=\"margin: 0px\">T\u1ea3i xu\u1ed1ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i iOS<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tr\u00ean \u0111\u00e2y l\u00e0 vi\u1ec7c chia s\u1ebb to\u00e1n h\u1ecdc so s\u00e1nh h\u01a1n l\u1edbp 3 \u0111\u1ec3 ph\u1ee5 huynh tham kh\u1ea3o. Hy v\u1ecdng r\u1eb1ng \u0111\u00e2y s\u1ebd l\u00e0 th\u00f4ng tin h\u1eefu \u00edch \u0111\u1ec3 gi\u00fap ph\u1ee5 huynh c\u00f3 th\u1ec3 h\u1ecdc to\u00e1n t\u1ed1t v\u1edbi con c\u00e1i c\u1ee7a h\u1ecd.<\/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>So s\u00e1nh d\u01b0\u1edbi l\u1edbp 3 l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n trong ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c m\u1edbi ng\u00e0y nay. Nghe c\u00f3 v\u1ebb nh\u01b0 m\u1ed9t v\u1ea5n \u0111\u1ec1 so s\u00e1nh l\u1edbp 3 l\u00e0 kh\u00e1 d\u1ec5 d\u00e0ng nh\u01b0ng v\u1eabn c\u00f2n nhi\u1ec1u tr\u1ebb em l\u00e0m sai, d\u1eabn \u0111\u1ebfn \u0111i\u1ec3m k\u00e9m. V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap con b\u1ea1n t\u00ecm&#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-21738","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21738","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=21738"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21738\/revisions"}],"predecessor-version":[{"id":26925,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21738\/revisions\/26925"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=21738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=21738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=21738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}