{"id":17667,"date":"2025-07-05T11:25:05","date_gmt":"2025-07-05T04:25:05","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=17667"},"modified":"2025-07-06T18:37:06","modified_gmt":"2025-07-06T11:37:06","slug":"phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/","title":{"rendered":"Ph\u00e9p c\u1ed9ng l\u00e0 g\u00ec? T\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n nh\u1ea5t trong ph\u00e9p c\u1ed9ng"},"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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Phep_cong_la_gi\" >Ph\u00e9p c\u1ed9ng 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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Tinh_chat_cua_phep_cong\" >T\u00ednh ch\u1ea5t c\u1ee7a ph\u00e9p c\u1ed9ng<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Tinh_giao_hoan\" >T\u00ednh giao ho\u00e1n<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Tinh_ket_hop\" >T\u00ednh k\u1ebft h\u1ee3p<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Cac_dang_phep_toan_cong_thuong_gap\" >C\u00e1c d\u1ea1ng ph\u00e9p to\u00e1n c\u1ed9ng th\u01b0\u1eddng g\u1eb7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Phep_cong_khong_nho\" >Ph\u00e9p c\u1ed9ng kh\u00f4ng nh\u1edb<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Phep_cong_co_nho\" >Ph\u00e9p c\u1ed9ng c\u00f3 nh\u1edb<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Cac_dang_bai_tap_lien_quan_toi_phep_cong_thuong_gap\" >C\u00e1c d\u1ea1ng b\u00e0i t\u1eadp li\u00ean quan t\u1edbi ph\u00e9p c\u1ed9ng th\u01b0\u1eddng g\u1eb7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Dang_1_Thuc_hien_phep_tinh\" >D\u1ea1ng 1: Th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Dang_2_Toan_co_loi_van\" >D\u1ea1ng 2: To\u00e1n c\u00f3 l\u1eddi v\u0103n<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Dang_3_Tim_chu_so_con_thieu_trong_phep_tinh_cong\" >D\u1ea1ng 3: T\u00ecm ch\u1eef s\u1ed1 c\u00f2n thi\u1ebfu trong ph\u00e9p t\u00ednh c\u1ed9ng<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Dang_4_So_sanh\" >D\u1ea1ng 4: So s\u00e1nh<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Bi_quyet_giup_be_hoc_ghi_nho_va_ung_dung_kien_thuc_ve_phep_cong_hieu_qua\" >B\u00ed quy\u1ebft gi\u00fap b\u00e9 h\u1ecdc, ghi nh\u1edb v\u00e0 \u1ee9ng d\u1ee5ng ki\u1ebfn th\u1ee9c v\u1ec1 ph\u00e9p c\u1ed9ng 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-14\" href=\"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Tao_hung_thu_hoc_toan_cho_be_voi_Shining_Home_%E2%80%93_Gia_dinh_Anh_Ngu_Math\" >T\u1ea1o h\u1ee9ng th\u00fa h\u1ecdc to\u00e1n cho b\u00e9 v\u1edbi Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Day_be_hoc_phep_cong_qua_cac_cong_cu_truc_quan\" >D\u1ea1y b\u00e9 h\u1ecdc ph\u00e9p c\u1ed9ng qua c\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c quan<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Day_be_hoc_phep_cong_thong_qua_tro_choi\" >D\u1ea1y b\u00e9 h\u1ecdc ph\u00e9p c\u1ed9ng th\u00f4ng qua tr\u00f2 ch\u01a1i<\/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\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Cung_con_lam_bai_tap_phep_cong_nhieu_hon\" >C\u00f9ng con l\u00e0m b\u00e0i t\u1eadp ph\u00e9p c\u1ed9ng nhi\u1ec1u h\u01a1n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Tong_hop_mot_so_bai_tap_phep_cong_de_be_luyen_tap\" >T\u1ed5ng h\u1ee3p m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp ph\u00e9p c\u1ed9ng \u0111\u1ec3 b\u00e9 luy\u1ec7n t\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.ckconitsha.com\/vn\/phep-cong-la-gi-tong-hop-kien-thuc-co-ban-nhat-trong-phep-cong\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>Ph\u00e9p c\u1ed9ng l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n nh\u1ea5t trong to\u00e1n h\u1ecdc, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng xuy\u00ean su\u1ed1t t\u1eeb nh\u1eefng b\u00e0i h\u1ecdc c\u01a1 b\u1ea3n cho \u0111\u1ebfn n\u00e2ng cao, t\u1eeb trong to\u00e1n h\u1ecdc \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng. V\u1eady \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ph\u00e9p c\u1ed9ng l\u00e0 g\u00ec? H\u00e3y c\u00f9ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef kh\u00e1m ph\u00e1 chi ti\u1ebft trong b\u00e0i vi\u1ebft sau \u0111\u00e2y.<\/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 kh\u1ea3 n\u0103ng ng\u00f4n ng\u1eef c\u1ee7a m\u00ecnh th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp c\u1ee7a Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef<\/p>\n<p class=\"description\">\u0110\u0103ng k\u00fd ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u1ec1 s\u1ea3n ph\u1ea9m v\u00e0 l\u1ed9 tr\u00ecnh h\u1ecdc cho con.<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra l\u1ea1i h\u1ecd t\u00ean<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra l\u1ea1i S\u0110T<\/p>\n<p>                                                                                Th\u00e0nh th\u1ea1o 2.000+ t\u1eeb &amp; 6.000 c\u00e2u ti\u1ebfng anh<br \/>\n                                                                                Ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n 4 k\u1ef9 n\u0103ng ti\u1ebfng anh<br \/>\n                                                                                Gi\u1ecfi To\u00e1n &#8211; ti\u1ebfng Anh theo ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n \u0111\u1ea1i<br \/>\n                                                                                Ph\u00e1t tri\u1ec3n EQ &amp; kh\u1ea3 n\u0103ng ti\u1ebfng Vi\u1ec7t<\/p>\n<p>                                                                                *B\u1ea1n ch\u01b0a ch\u1ecdn m\u1ee5c n\u00e0o!<\/p>\n<p>                                                                    \u0110\u0103ng K\u00fd T\u01b0 V\u1ea5n Mi\u1ec5n Ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Phep_cong_la_gi\"><\/span>Ph\u00e9p c\u1ed9ng l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Ph\u00e9p c\u1ed9ng hay c\u00f2n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 ph\u00e9p t\u00ednh t\u1ed5ng, k\u1ebft qu\u1ea3 c\u1ee7a vi\u1ec7c c\u1ed9ng c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng hay c\u00e1c s\u1ed1 v\u1edbi nhau. M\u1ed9t t\u1ed5ng lu\u00f4n ch\u1ee9a m\u1ed9t s\u1ed1 nguy\u00ean t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<p dir=\"ltr\">C\u00f2n trong to\u00e1n h\u1ecdc, t\u00ednh t\u1ed5ng ch\u00ednh l\u00e0 ph\u00e9p c\u1ed9ng c\u1ee7a d\u00e3y s\u1ed1 b\u1ea5t k\u1ef3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ed1 c\u1ed9ng (s\u1ed1 h\u1ea1ng) c\u00f2n k\u1ebft qu\u1ea3 l\u00e0 t\u1ed5ng. B\u00ean c\u1ea1nh vi\u1ec7c c\u1ed9ng s\u1ed1 th\u00ec c\u0169ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh n\u00e0y v\u1edbi vect\u01a1, h\u00e0m, \u0111a th\u1ee9c, ma tr\u1eadn,\u2026<\/p>\n<p dir=\"ltr\">K\u00fd hi\u1ec7u ph\u00e9p c\u1ed9ng l\u00e0 \u201c+\u201d.<\/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\/phep-cong-1.jpg\" alt=\"Ph\u00e9p c\u1ed9ng l\u00e0 vi\u1ec7c t\u00ednh t\u1ed5ng c\u00e1c s\u1ed1 h\u1ea1ng v\u1edbi nhau. (\u1ea2nh: S\u01b0u t\u1ea7m internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tinh_chat_cua_phep_cong\"><\/span>T\u00ednh ch\u1ea5t c\u1ee7a ph\u00e9p c\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong ph\u00e9p c\u1ed9ng s\u1ebd c\u00f3 2 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n nh\u1ea5t l\u00e0:<\/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\/phep-cong-2.jpg\" alt=\"\u0110\u1eb7c \u0111i\u1ec3m t\u00ednh ch\u1ea5t c\u1ee7a ph\u00e9p c\u1ed9ng. (\u1ea2nh: S\u01b0u t\u1ea7m internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tinh_giao_hoan\"><\/span>T\u00ednh giao ho\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong ph\u00e9p c\u1ed9ng, giao ho\u00e1n l\u00e0 t\u00ednh ch\u1ea5t \u0111\u1eb7c tr\u01b0ng nh\u1ea5t. \u0110\u00e2y l\u00e0 t\u00ednh ch\u1ea5t m\u00e0 trong ph\u00e9p c\u1ed9ng kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u00e1c con s\u1ed1 khi c\u1ed9ng l\u1ea1i v\u1edbi nhau \u0111\u1ec1u cho ra c\u00f9ng m\u1ed9t k\u1ebft qu\u1ea3.<\/p>\n<p dir=\"ltr\">Ngh\u0129a l\u00e0, kh\u00f4ng quan tr\u1ecdng s\u1ed1 n\u00e0o \u0111\u1ee9ng tr\u01b0\u1edbc, s\u1ed1 n\u00e0o \u0111\u1ee9ng sau khi c\u1ed9ng l\u1ea1i th\u00ec k\u1ebft qu\u1ea3 hay t\u1ed5ng v\u1eabn nh\u01b0 nhau.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 5 + 3 = 8 m\u00e0 3 + 5 = 8<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tinh_ket_hop\"><\/span>T\u00ednh k\u1ebft h\u1ee3p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">T\u00ednh ch\u1ea5t k\u1ebft h\u1ee3p c\u1ee7a ph\u00e9p c\u1ed9ng \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 khi ta c\u1ed9ng nhi\u1ec1u h\u01a1n 2 s\u1ed1 th\u00ec th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh c\u1ed9ng c\u0169ng c\u00f3 k\u1ebft qu\u1ea3 kh\u00f4ng thay \u0111\u1ed5i.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: (1 + 2) + 3 = 3 + 3 = 6 = 1 + 5 = 1 + (2 + 3).<\/em><\/p>\n<p dir=\"ltr\">T\u00f3m l\u1ea1i, ph\u00e9p c\u1ed9ng ch\u00ednh l\u00e0 m\u1ed9t ph\u00e9p t\u00ednh c\u0103n b\u1ea3n v\u00e0 l\u00e0 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng nh\u1ea5t khi h\u1ecdc to\u00e1n m\u00e0 c\u00e1c b\u00e9 s\u1ebd ph\u1ea3i n\u1eafm v\u1eefng. N\u00ean b\u1ed1 m\u1eb9 c\u1ea7n l\u01b0u \u00fd \u0111\u1ec3 con hi\u1ec3u b\u1ea3n ch\u1ea5t c\u1ee7a ch\u00fang \u0111\u1ec3 l\u00e0m to\u00e1n ch\u00ednh x\u00e1c.<\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_dang_phep_toan_cong_thuong_gap\"><\/span>C\u00e1c d\u1ea1ng ph\u00e9p to\u00e1n c\u1ed9ng th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong to\u00e1n h\u1ecdc, ph\u00e9p c\u1ed9ng \u0111\u01b0\u1ee3c chia th\u00e0nh 2 d\u1ea1ng ch\u00ednh l\u00e0 ph\u00e9p c\u1ed9ng kh\u00f4ng nh\u1edb v\u00e0 c\u00f3 nh\u1edb. C\u1ee5 th\u1ec3:<\/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\/phep-cong-3.jpg\" alt=\"Trong to\u00e1n h\u1ecdc c\u00f3 ph\u00e9p c\u1ed9ng kh\u00f4ng nh\u1edb v\u00e0 c\u00f3 nh\u1edb. (\u1ea2nh: S\u01b0u t\u1ea7m internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Phep_cong_khong_nho\"><\/span>Ph\u00e9p c\u1ed9ng kh\u00f4ng nh\u1edb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u00e2y l\u00e0 ph\u00e9p t\u00ednh \u0111\u01a1n gi\u1ea3n nh\u1ea5t khi ta th\u1ef1c hi\u1ec7n ph\u00e9p c\u1ed9ng d\u1ed3n c\u00e1c s\u1ed1 h\u1ea1ng thu\u1ed9c m\u1ed9t h\u00e0ng n\u00e0o \u0111\u00f3 l\u1ea1i v\u1edbi k\u1ebft qu\u1ea3 b\u00e9 h\u01a1n 10.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 25 + 4 =<\/em><\/p>\n<p dir=\"ltr\"><em>L\u00fac n\u00e0y 5 + 4 b\u1eb1ng 9, vi\u1ebft 9<\/em><\/p>\n<p dir=\"ltr\"><em>2 + 0 b\u1eb1ng 2, vi\u1ebft 2<\/em><\/p>\n<p dir=\"ltr\"><em>K\u1ebft qu\u1ea3 ph\u00e9p t\u00ednh l\u00e0 29<\/em><\/p>\n<p dir=\"ltr\"><em>Trong \u0111\u00f3 25 l\u00e0 s\u1ed1 h\u1ea1ng th\u1ee9 nh\u1ea5t, 4 l\u00e0 s\u1ed1 h\u00e0ng th\u1ee9 2, t\u1ed5ng c\u1ee7a hai s\u1ed1 h\u1ea1ng n\u00e0y l\u00e0 29.\u00a0<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Phep_cong_co_nho\"><\/span>Ph\u00e9p c\u1ed9ng c\u00f3 nh\u1edb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u00e2y \u0111\u01b0\u1ee3c xem l\u00e0 ph\u00e9p c\u1ed9ng n\u00e2ng cao v\u1edbi c\u00e1c ph\u00e9p c\u1ed9ng m\u00e0 khi c\u1ed9ng d\u1ed3n c\u00e1c s\u1ed1 h\u1ea1ng thu\u1ed9c h\u00e0ng n\u00e0o \u0111\u00f3 s\u1ebd c\u00f3 k\u1ebft qu\u1ea3 l\u1edbn h\u01a1n 10. L\u00fac n\u00e0y ta s\u1ebd nh\u1edb s\u1ed1 h\u00e0ng ch\u1ee5c v\u1ec1 ph\u00eda h\u00e0ng ph\u00eda tr\u01b0\u1edbc \u0111\u1ec3 th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 38 + 6 =<\/em><\/p>\n<p dir=\"ltr\"><em>Ta l\u1ea5y 8 + 6 b\u1eb1ng 14, vi\u1ebft 4 nh\u1edb 1<\/em><\/p>\n<p dir=\"ltr\"><em>Ti\u1ebfp t\u1ee5c, 3 + 0 b\u1eb1ng 3, nh\u1edb 1 b\u1eb1ng 4 vi\u1ebft 3<\/em><\/p>\n<p dir=\"ltr\"><em>K\u1ebft qu\u1ea3 ph\u00e9p t\u00ednh l\u00e0 44<\/em><\/p>\n<p dir=\"ltr\"><em>Trong \u0111\u00f3 38 l\u00e0 s\u1ed1 h\u1ea1ng th\u1ee9 nh\u1ea5t, 6 l\u00e0 s\u1ed1 h\u00e0ng th\u1ee9 2, t\u1ed5ng c\u1ee7a hai s\u1ed1 h\u1ea1ng n\u00e0y l\u00e0 44.<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_dang_bai_tap_lien_quan_toi_phep_cong_thuong_gap\"><\/span>C\u00e1c d\u1ea1ng b\u00e0i t\u1eadp li\u00ean quan t\u1edbi ph\u00e9p c\u1ed9ng th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi ph\u00e9p t\u00ednh c\u1ed9ng trong to\u00e1n h\u1ecdc s\u1ebd c\u00f3 nhi\u1ec1u d\u1ea1ng b\u00e0i t\u1eadp kh\u00e1c nhau. Nh\u01b0ng v\u1edbi c\u00e1c b\u00e9 h\u1ecdc c\u1ea5p 1 th\u00ec ta s\u1ebd g\u1eb7p m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp c\u01a1 b\u1ea3n nh\u01b0 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\/phep-cong-4.jpg\" alt=\"C\u00f3 nhi\u1ec1u d\u1ea1ng to\u00e1n khi b\u00e9 h\u1ecdc ph\u00e9p c\u1ed9ng. (\u1ea2nh: s\u01b0u t\u1ea7m internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dang_1_Thuc_hien_phep_tinh\"><\/span>D\u1ea1ng 1: Th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">V\u1edbi d\u1ea1ng b\u00e0i t\u1eadp n\u00e0y \u0111\u01b0\u1ee3c xem l\u00e0 c\u01a1 b\u1ea3n nh\u1ea5t, ch\u00fang c\u00f3 th\u1ec3 l\u00e0 \u0111\u1eb7t t\u00ednh r\u1ed3i t\u00ednh ho\u1eb7c t\u00ednh nh\u1ea9m. V\u1eady n\u00ean, c\u00e1c em ch\u1ec9 c\u1ea7n th\u1ef1c hi\u1ec7n vi\u1ec7c c\u1ed9ng c\u00e1c s\u1ed1 h\u1ea1ng v\u1edbi nhau theo t\u00ednh ch\u1ea5t, quy t\u1eafc c\u1ed9ng c\u00e1c s\u1ed1 t\u1eeb h\u00e0ng \u0111\u01a1n v\u1ecb \u0111\u1ebfn h\u00e0ng ch\u1ee5c \u0111\u1ec3 t\u00ecm \u0111\u00e1p \u00e1n ch\u00ednh x\u00e1c.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 23 + 16 = 39<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dang_2_Toan_co_loi_van\"><\/span>D\u1ea1ng 2: To\u00e1n c\u00f3 l\u1eddi v\u0103n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: \u0110\u1ea7u ti\u00ean c\u00e1c em s\u1ebd ph\u1ea3i \u0111\u1ecdc v\u00e0 ph\u00e2n t\u00edch k\u1ef9 \u0111\u1ec1 b\u00e0i \u0111\u00e3 cho nh\u1eefng s\u1ed1 li\u1ec7u n\u00e0o, s\u1ed1 l\u01b0\u1ee3ng gi\u1ea3m hay t\u0103ng, y\u00eau c\u1ea7u \u0111\u1ec1 b\u00e0i \u0111\u01b0a ra l\u00e0 g\u00ec. Sau \u0111\u00f3 d\u1ef1a v\u00e0o t\u1eeb kh\u00f3a c\u1ee7a b\u00e0i nh\u01b0 t\u00ecm \u201cc\u00f2n l\u1ea1i\u201d, \u201ct\u1ea5t c\u1ea3\u201d,\u2026 c\u00f9ng y\u00eau c\u1ea7u c\u1ee7a b\u00e0i to\u00e1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ph\u00e9p t\u00ednh ph\u00f9 h\u1ee3p.<\/p>\n<p dir=\"ltr\">Ti\u1ebfp \u0111\u1ebfn s\u1ebd ph\u1ea3i tr\u00ecnh b\u00e0y l\u1eddi gi\u1ea3i, ph\u00e9p t\u00ednh v\u00e0 vi\u1ebft \u0111\u00e1p s\u1ed1 ch\u00ednh x\u00e1c. Cu\u1ed1i c\u00f9ng s\u1ebd ph\u1ea3i ki\u1ec3m tra l\u1eddi gi\u1ea3i b\u00e0i to\u00e1n v\u00e0 k\u1ebft qu\u1ea3 \u0111\u01b0a ra.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: M\u1ed9t ng\u01b0\u1eddi n\u00f4ng d\u00e2n nu\u00f4i 15 con g\u00e0 v\u00e0 5 con ch\u00f3. H\u1ecfi ng\u01b0\u1eddi n\u00f4ng d\u00e2n \u0111\u00f3 c\u00f3 t\u1ea5t c\u1ea3 bao nhi\u00eau g\u00e0 v\u00e0 ch\u00f3?<\/em><\/p>\n<p dir=\"ltr\"><em>L\u1eddi gi\u1ea3i:<\/em><\/p>\n<p dir=\"ltr\"><em>Ng\u01b0\u1eddi n\u00f4ng d\u00e2n \u0111\u00f3 c\u00f3 t\u1ea5t c\u1ea3 s\u1ed1 g\u00e0 v\u00e0 ch\u00f3 l\u00e0:<\/em><\/p>\n<p dir=\"ltr\"><em>15 + 5 = 20 (con)<\/em><\/p>\n<p dir=\"ltr\"><em>\u0110\u00e1p s\u1ed1: 20 con.<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dang_3_Tim_chu_so_con_thieu_trong_phep_tinh_cong\"><\/span>D\u1ea1ng 3: T\u00ecm ch\u1eef s\u1ed1 c\u00f2n thi\u1ebfu trong ph\u00e9p t\u00ednh c\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: C\u00e1c em c\u0169ng s\u1ebd ph\u1ea3i th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh c\u1ed9ng t\u1eeb h\u00e0ng \u0111\u01a1n v\u1ecb \u0111\u1ebfn h\u00e0ng ch\u1ee5c. N\u1ebfu l\u00e0 ph\u00e9p to\u00e1n c\u1ed9ng c\u00f3 3 gi\u00e1 tr\u1ecb, \u0111\u1ec1 b\u00e0i cho bi\u1ebft hai trong 3 gi\u00e1 tr\u1ecb th\u00ec ta s\u1ebd t\u00ednh nh\u1ea9m \u0111\u1ec3 t\u00ecm gi\u00e1 tr\u1ecb c\u00f2n thi\u1ebfu.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: \u0110i\u1ec1u ch\u1eef s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng \u0111\u1ec3 ho\u00e0n th\u00e0nh ph\u00e9p t\u00ednh:<\/em><\/p>\n<p dir=\"ltr\"><em>5\u2026.+ 20 = \u2026.6<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i:<\/em><\/p>\n<p dir=\"ltr\"><em>Nh\u1ea9m t\u1eeb h\u00e0ng \u0111\u01a1n v\u1ecb \u0111\u1ebfn h\u00e0ng ch\u1ee5c<\/em><\/p>\n<p dir=\"ltr\"><em>H\u00e0ng \u0111\u01a1n v\u1ecb: S\u1ed1 n\u00e0o c\u1ed9ng v\u1edbi 0 b\u1eb1ng 6. Ta c\u00f3: 6 + 0\u00a0 =6 n\u00ean s\u1ed1 t\u00ecm \u0111\u01b0\u1ee3c l\u00e0 s\u1ed1 6.<\/em><\/p>\n<p dir=\"ltr\"><em>H\u00e0ng ch\u1ee5c: Nh\u1ea9m 5+2=7 n\u00ean s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng c\u00f2n l\u1ea1i l\u00e0 7<\/em><\/p>\n<p dir=\"ltr\"><em>V\u1eady \u0111i\u1ec1n c\u00e1c s\u1ed1 v\u00e0o ch\u1ed7 tr\u1ed1ng \u0111\u1ec3 \u0111\u01b0\u1ee3c ph\u00e9p t\u00ednh nh\u01b0 sau:<\/em><\/p>\n<p dir=\"ltr\"><em>56 + 20 = 76<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dang_4_So_sanh\"><\/span>D\u1ea1ng 4: So s\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">V\u1edbi d\u1ea1ng b\u00e0i t\u1eadp n\u00e0y ta c\u00f3 th\u1ec3 t\u00ednh t\u1ed5ng c\u1ee7a 1 v\u1ebf r\u1ed3i mang k\u1ebft qu\u1ea3 so s\u00e1nh v\u1edbi v\u1ebf c\u00f2n l\u1ea1i \u0111\u1ec3 \u0111i\u1ec1n d\u1ea5u &gt;, &lt;, = th\u00edch h\u1ee3p.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 25 + 30 \u2026 60<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i: Ta l\u1ea5y 25 + 30 = 55, khi so s\u00e1nh v\u1edbi 60 ta \u0111\u01b0\u1ee3c 55 &lt; 60 n\u00ean 25 + 30 &lt; 60<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bi_quyet_giup_be_hoc_ghi_nho_va_ung_dung_kien_thuc_ve_phep_cong_hieu_qua\"><\/span>B\u00ed quy\u1ebft gi\u00fap b\u00e9 h\u1ecdc, ghi nh\u1edb v\u00e0 \u1ee9ng d\u1ee5ng ki\u1ebfn th\u1ee9c v\u1ec1 ph\u00e9p c\u1ed9ng hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">V\u1ec1 c\u01a1 b\u1ea3n, ph\u00e9p c\u1ed9ng l\u00e0 m\u1ed9t trong nh\u1eefng ph\u00e9p t\u00ednh c\u01a1 b\u1ea3n m\u00e0 b\u00e9 s\u1ebd \u0111\u01b0\u1ee3c h\u1ecdc v\u00e0 l\u00e0m quen \u0111\u1ea7u ti\u00ean. \u0110\u1ec3 gi\u00fap con c\u00f3 th\u1ec3 h\u1ecdc t\u1ed1t ph\u00e9p t\u00ednh n\u00e0y, b\u1ed1 m\u1eb9 c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng nh\u1eefng b\u00ed quy\u1ebft sau \u0111\u00e2y:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tao_hung_thu_hoc_toan_cho_be_voi_Shining_Home_%E2%80%93_Gia_dinh_Anh_Ngu_Math\"><\/span>T\u1ea1o h\u1ee9ng th\u00fa h\u1ecdc to\u00e1n cho b\u00e9 v\u1edbi Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 \u1ee9ng d\u1ee5ng d\u1ea1y h\u1ecdc to\u00e1n ti\u1ebfng Anh h\u00e0ng \u0111\u1ea7u Vi\u1ec7t Nam, \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean ti\u00eau chu\u1ea9n Common Core State Standards c\u1ee7a M\u1ef9 d\u00e0nh cho \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 tr\u1ebb m\u1ea7m non v\u00e0 ti\u1ec3u h\u1ecdc. V\u1edbi \u1ee9ng d\u1ee5ng n\u00e0y s\u1ebd gi\u00fap b\u00e9 h\u1ecdc to\u00e1n b\u1eb1ng ti\u1ebfng Anh \u0111\u1ec3 v\u1eeba gi\u00fap b\u00e9 ph\u00e1t tri\u1ec3n t\u01b0 duy to\u00e1n h\u1ecdc hi\u1ec7u qu\u1ea3, v\u1eeba gi\u00fap con ph\u00e1t tri\u1ec3n ng\u00f4n ng\u1eef ti\u1ebfng Anh m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean.<\/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\/phep-cong-5.jpg\" alt=\"H\u1ecdc to\u00e1n theo ph\u01b0\u01a1ng ph\u00e1p t\u00edch c\u1ef1c c\u00f9ng Shining Home - Gia \u0111\u00ecnh Anh Ng\u1eef Math. (\u1ea2nh: Shining Home - Gia \u0111\u00ecnh Anh Ng\u1eef)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">C\u1ee5 th\u1ec3, v\u1edbi ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc c\u00f9ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math s\u1ebd \u0111\u01b0\u1ee3c bi\u00ean so\u1ea1n d\u1ef1a tr\u00ean h\u01a1n 60 ch\u1ee7 \u0111\u1ec1 to\u00e1n ph\u00e1t tri\u1ec3n t\u1eeb 7 chuy\u00ean \u0111\u1ec1 l\u1edbn t\u1eeb S\u1ed1, Ph\u00e9p t\u00ednh v\u00e0 t\u01b0 duy \u0111\u1ea1i s\u1ed1, \u0110o l\u01b0\u1eddng, H\u00ecnh h\u1ecdc, Th\u1ed1ng k\u00ea v\u00e0 bi\u1ec3u \u0111\u1ed3. T\u1ea5t c\u1ea3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p t\u1ea1o th\u00e0nh h\u01a1n 400 b\u00e0i h\u1ecdc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf logic, ch\u1eb7t ch\u1ebd v\u1edbi h\u01a1n 10000 ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u00e1c, \u0111\u1ec3 b\u00e9 c\u00f3 th\u1ec3 h\u1ecdc, \u00f4n t\u1eadp v\u00e0 ghi nh\u1edb ki\u1ebfn th\u1ee9c hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<p dir=\"ltr\">\u0110\u1eb7c bi\u1ec7t, tr\u01b0\u1edbc m\u1ed7i b\u00e0i h\u1ecdc b\u00e9 s\u1ebd \u0111\u01b0\u1ee3c xem video ho\u1ea1t h\u00ecnh ng\u1ed9 ngh\u0129nh v\u1ec1 b\u00e0i h\u1ecdc \u0111\u1ec3 b\u00e9 c\u00f3 th\u1ec3 hi\u1ec3u, h\u00ecnh dung m\u1ed9t c\u00e1ch tr\u1ef1c quan, x\u00e1c l\u1eadp t\u1eebng b\u01b0\u1edbc t\u01b0 duy v\u1ec1 nh\u1eadn th\u1ee9c, ng\u00f4n ng\u1eef v\u00e0 gi\u00fap con n\u1eafm b\u1eaft ki\u1ebfn th\u1ee9c m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean nh\u1ea5t.<\/p>\n<p dir=\"ltr\">\u0110\u1ea3m b\u1ea3o, v\u1edbi Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math, con kh\u00f4ng ch\u1ec9 n\u1eafm ch\u1eafc l\u00fd thuy\u1ebft m\u00e0 c\u00f2n bi\u1ebft c\u00e1ch \u1ee9ng d\u1ee5ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft b\u00e0i to\u00e1n, t\u01b0 duy gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u00e0 h\u00ecnh th\u00e0nh tinh th\u1ea7n t\u1ef1 h\u1ecdc hi\u1ec7u qu\u1ea3.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><iframe loading=\"lazy\" title=\"Gi\u1edbi thi\u1ec7u \u1ee9ng d\u1ee5ng Monkey Math\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/7DsjpvHFrOs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p dir=\"ltr\">T\u1ea3i Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i Android<\/p>\n<p dir=\"ltr\">T\u1ea3i Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i iOS<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Day_be_hoc_phep_cong_qua_cac_cong_cu_truc_quan\"><\/span>D\u1ea1y b\u00e9 h\u1ecdc ph\u00e9p c\u1ed9ng qua c\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c quan<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi c\u00e1c b\u00e9 m\u1edbi b\u1eaft \u0111\u1ea7u h\u1ecdc ph\u00e9p c\u1ed9ng th\u00ec b\u1ed1 m\u1eb9 n\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 h\u1ecdc tr\u1ef1c quan t\u1eeb que t\u00ednh, c\u00e1c kh\u1ed1i lego, domino,\u2026 hay b\u1ea5t k\u1ef3 \u0111\u1ed3 d\u00f9ng n\u00e0o m\u00e0 b\u00e9 y\u00eau th\u00edch \u0111\u1ec3 c\u00f9ng con h\u1ecdc ph\u00e9p t\u00ednh c\u1ed9ng d\u1ec5 d\u00e0ng.<\/p>\n<p dir=\"ltr\">B\u1edfi v\u00ec khi c\u00f3 c\u00f4ng c\u1ee5 tr\u1ef1c quan b\u00e9 s\u1ebd d\u1ec5 h\u00ecnh dung \u0111\u01b0\u1ee3c ph\u00e9p t\u00ednh, c\u0169ng nh\u01b0 th\u1ef1c h\u00e0nh v\u00e0 t\u1ea1o s\u1ef1 h\u1ee9ng th\u00fa khi h\u1ecdc hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Day_be_hoc_phep_cong_thong_qua_tro_choi\"><\/span>D\u1ea1y b\u00e9 h\u1ecdc ph\u00e9p c\u1ed9ng th\u00f4ng qua tr\u00f2 ch\u01a1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi c\u00e1c b\u00e9 trong \u0111\u1ed9 tu\u1ed5i h\u1ecdc to\u00e1n ph\u00e9p c\u1ed9ng th\u01b0\u1eddng t\u1eeb 3 \u2013 10 tu\u1ed5i. \u0110\u00e2y l\u00e0 \u0111\u1ed9 tu\u1ed5i kh\u00e1 ham ch\u01a1i n\u00ean vi\u1ec7c \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc to\u00e1n th\u00f4ng qua tr\u00f2 ch\u01a1i s\u1ebd v\u00f4 c\u00f9ng h\u1eefu hi\u1ec7u \u0111\u1ec3 b\u1ed1 m\u1eb9 tri\u1ec3n khai.<\/p>\n<p dir=\"ltr\">\u1ede \u0111\u00e2y b\u1ed1 m\u1eb9 c\u00f3 th\u1ec3 t\u1ef1 t\u1ed5 ch\u1ee9c c\u00e1c tr\u00f2 ch\u01a1i nh\u01b0 thi \u0111\u1ebfm \u0111\u1ed3 v\u1eadt, t\u00ednh ti\u1ec1n, \u0111\u1ebfm ng\u00f3n tay, \u0111i ch\u1ee3\u2026.\u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap b\u00e9 c\u00f3 s\u1ef1 h\u1ee9ng th\u00fa khi h\u1ecdc to\u00e1n, c\u0169ng nh\u01b0 gia t\u0103ng kh\u1ea3 n\u0103ng t\u01b0 duy v\u00e0 ghi nh\u1edb c\u1ee7a tr\u1ebb t\u1ed1t 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\/phep-cong-6.jpg\" alt=\"T\u1ed5 ch\u1ee9c c\u00e1c tr\u00f2 ch\u01a1i h\u1ecdc to\u00e1n c\u1ed9ng cho b\u00e9. (\u1ea2nh: S\u01b0u t\u1ea7m internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cung_con_lam_bai_tap_phep_cong_nhieu_hon\"><\/span>C\u00f9ng con l\u00e0m b\u00e0i t\u1eadp ph\u00e9p c\u1ed9ng nhi\u1ec1u h\u01a1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 h\u1ecdc to\u00e1n c\u1ed9ng cho b\u00e9, b\u1ed1 m\u1eb9 h\u00e3y c\u00f9ng con th\u1ef1c h\u00e0nh, l\u00e0m b\u00e0i t\u1eadp th\u01b0\u1eddng xuy\u00ean. \u1ede \u0111\u00e2y b\u1ea1n c\u00f3 th\u1ec3 cho b\u00e9 l\u00e0m b\u00e0i t\u1eadp tr\u00ean l\u1edbp, k\u1ebft h\u1ee3p c\u00f9ng v\u1edbi vi\u1ec7c ngh\u0129 ra nhi\u1ec1u b\u00e0i to\u00e1n trong \u0111\u1eddi s\u1ed1ng, th\u1ef1c t\u1ebf hay t\u00ecm ki\u1ebfm tr\u00ean internet \u0111\u1ec3 b\u00e9 c\u00f3 c\u01a1 h\u1ed9i c\u1ecd s\u00e1t v\u1edbi nhi\u1ec1u d\u1ea1ng to\u00e1n. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng h\u1ecdc to\u00e1n c\u1ee7a b\u00e9 ng\u00e0y m\u1ed9t t\u1ed1t h\u01a1n.<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tong_hop_mot_so_bai_tap_phep_cong_de_be_luyen_tap\"><\/span>T\u1ed5ng h\u1ee3p m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp ph\u00e9p c\u1ed9ng \u0111\u1ec3 b\u00e9 luy\u1ec7n t\u1eadp<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 ph\u00e9p c\u1ed9ng th\u00edch h\u1ee3p cho b\u00e9 m\u1edbi h\u1ecdc to\u00e1n m\u00e0 b\u1ed1 m\u1eb9 c\u00f3 th\u1ec3 c\u00f9ng b\u00e9 luy\u1ec7n t\u1eadp:<\/p>\n<p dir=\"ltr\">B\u00e0i 1: L\u1edbp 2A c\u00f3 34 h\u1ecdc sinh, l\u1edbp 2B c\u00f3 29 h\u1ecdc sinh. T\u00ednh t\u1ed5ng s\u1ed1 h\u1ecdc sinh c\u1ee7a hai l\u1edbp 2A v\u00e0 2B.<\/p>\n<p dir=\"ltr\">B\u00e0i 2: An c\u00f3 29 c\u00e1i k\u1eb9o, m\u1eb9 cho An 5 c\u00e1i k\u1eb9o. H\u1ecfi l\u00fac n\u00e0y An c\u00f3 t\u1ea5t c\u1ea3 bao nhi\u00eau c\u00e1i k\u1eb9o?<\/p>\n<p dir=\"ltr\">B\u00e0i 3: L\u1edbp 2A c\u00f3 19 b\u1ea1n nam v\u00e0 18 b\u1ea1n n\u1eef. H\u1ecfi l\u1edbp 2A c\u00f3 t\u1ea5t c\u1ea3 bao nhi\u00eau h\u1ecdc sinh.<\/p>\n<p dir=\"ltr\">B\u00e0i 4: Kh\u00fac g\u1ed7 th\u1ee9 nh\u1ea5t d\u00e0i 17dm, kh\u00fac g\u1ed7 th\u1ee9 hai d\u00e0i 19dm. N\u1ebfu kh\u00fac g\u1ed7 th\u1ee9 ba b\u1eb1ng t\u1ed5ng \u0111\u1ed9 d\u00e0i hai kh\u00fac g\u1ed7 \u0111\u1ea7u th\u00ec kh\u00fac g\u1ed7 th\u1ee9 ba d\u00e0i bao nhi\u00eau \u0111\u1ec1-xi-m\u00e9t?<\/p>\n<p dir=\"ltr\">B\u00e0i 5: Tr\u00ean s\u00e2n c\u00f3 18 con v\u1ecbt v\u00e0 14 con g\u00e0. H\u1ecfi tr\u00ean s\u00e2n c\u00f3 t\u1ea5t c\u1ea3 bao nhi\u00eau con c\u1ea3 g\u00e0 v\u00e0 v\u1ecbt?<\/p>\n<p dir=\"ltr\">B\u00e0i 6: Tr\u00ean s\u00e2n c\u00f3 18 b\u1ea1n n\u1eef v\u00e0 15 b\u1ea1n nam. H\u1ecfi tr\u00ean s\u00e2n c\u00f3 t\u1ea5t c\u1ea3 bao nhi\u00eau b\u1ea1n nam v\u00e0 n\u1eef?<\/p>\n<p dir=\"ltr\">B\u00e0i 7: Gi\u00e1 s\u00e1ch th\u1ee9 nh\u1ea5t c\u00f3 7 quy\u1ec3n, gi\u00e1 s\u00e1ch th\u1ee9 hai c\u00f3 14 quy\u1ec3n. H\u1ecfi c\u1ea3 hai gi\u00e1 s\u00e1ch c\u00f3 t\u1ea5t c\u1ea3 bao nhi\u00eau quy\u1ec3n?<\/p>\n<p dir=\"ltr\">B\u00e0i 8: T\u00ednh nh\u1ea9m<\/p>\n<p dir=\"ltr\">a. 26 + 5 =<\/p>\n<p dir=\"ltr\">b. 6 + 37 =<\/p>\n<p dir=\"ltr\">c. 56 + 6 =<\/p>\n<p dir=\"ltr\">d. 86 + 8 =<\/p>\n<p dir=\"ltr\">e. 57 + 18 =<\/p>\n<p dir=\"ltr\">f. 26 + 35 =<\/p>\n<p dir=\"ltr\">g. 67 + 26 =<\/p>\n<p dir=\"ltr\">h. 55 + 36 =<\/p>\n<p dir=\"ltr\">B\u00e0i 9: Vi\u1ebft s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng:<\/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\/phep-cong-7.jpg\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00e0i 10: \u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng:<\/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\/phep-cong-8.jpg\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00e0i 11: \u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng:<\/p>\n<p dir=\"ltr\">a. \u2026. + 9 = 16<\/p>\n<p dir=\"ltr\">b. 17\u00a0 +\u00a0 \u2026. = 38<\/p>\n<p dir=\"ltr\">c. 6 + \u2026. = 14<\/p>\n<p dir=\"ltr\">d. \u2026. + 5 = 18<\/p>\n<p dir=\"ltr\">e. 15 + \u2026. = 27<\/p>\n<p dir=\"ltr\">f. \u2026. + 7 = 12<\/p>\n<p dir=\"ltr\">B\u00e0i 12: \u0110i\u1ec1n ch\u1eef s\u1ed1 th\u00edch h\u1ee3p v\u00e0o d\u1ea5u h\u1ecfi (?)<\/p>\n<p dir=\"ltr\">a. ?? + ?6 = 31<\/p>\n<p dir=\"ltr\">b. 9? + ?? = 100<\/p>\n<p dir=\"ltr\">B\u00e0i 13: \u0110i\u1ec1n d\u1ea5u &gt;, &lt;, = v\u00e0o ch\u1ed7 ch\u1ea5m<\/p>\n<p dir=\"ltr\">a. 15 \u2026 5 + 7<\/p>\n<p dir=\"ltr\">b. 23 + 8 \u2026 9 + 17<\/p>\n<p dir=\"ltr\">c. 35 \u2026 20 + 7<\/p>\n<p dir=\"ltr\">d. 17 + 3 \u2026 20<\/p>\n<p dir=\"ltr\">e. 23 + 23 \u2026 15 + 11<\/p>\n<p dir=\"ltr\">B\u00e0i 14: Trong \u0111\u1ee3t tr\u1ed3ng c\u00e2y m\u00f9a xu\u00e2n, kh\u1ed1i 9 tr\u1ed3ng \u0111\u01b0\u1ee3c 37 c\u00e2y, kh\u1ed1i 8 tr\u1ed3ng 28 c\u00e2y, kh\u1ed1i 7 tr\u1ed3ng \u0111\u01b0\u1ee3c 19 c\u00e2y. H\u1ecfi:<\/p>\n<p dir=\"ltr\">a) Kh\u1ed1i 9 v\u00e0 kh\u1ed1i 8 tr\u1ed3ng \u0111\u01b0\u1ee3c bao nhi\u00eau c\u00e2y?<\/p>\n<p dir=\"ltr\">b) C\u1ea3 ba kh\u1ed1i tr\u1ed3ng \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 bao nhi\u00eau c\u00e2y?<\/p>\n<p dir=\"ltr\">B\u00e0i 15: M\u1eb9 mang ra ch\u1ee3 b\u00e1n 78 qu\u1ea3 cam. Bu\u1ed5i s\u00e1ng m\u1eb9 b\u00e1n \u0111\u01b0\u1ee3c 34 qu\u1ea3, bu\u1ed5i chi\u1ec1u b\u00e1n \u0111\u01b0\u1ee3c 37 qu\u1ea3. H\u1ecfi:<\/p>\n<p dir=\"ltr\">a) C\u1ea3 s\u00e1ng v\u00e0 chi\u1ec1u m\u1eb9 b\u00e1n \u0111\u01b0\u1ee3c bao nhi\u00eau qu\u1ea3 cam?<\/p>\n<p dir=\"ltr\">b) M\u1eb9 c\u00f2n bao nhi\u00eau qu\u1ea3 cam?\u00a0<\/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>\n<p dir=\"ltr\">Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 ph\u00e9p c\u1ed9ng. Qua \u0111\u00f3 c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c \u0111\u00e2y l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a to\u00e1n h\u1ecdc m\u00e0 b\u00e9 c\u1ea7n n\u1eafm v\u1eefng \u0111\u1ec3 ph\u1ee5c v\u1ee5 vi\u1ec7c h\u1ecdc t\u1eadp v\u00e0 \u1ee9ng d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng th\u1ef1c t\u1ebf. Hy v\u1ecdng d\u1ef1a v\u00e0o nh\u1eefng chia s\u1ebb tr\u00ean c\u1ee7a Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef s\u1ebd gi\u00fap vi\u1ec7c h\u1ecdc to\u00e1n c\u1ee7a b\u00e9 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<p>                                    references<\/p>\n<p>Sum \u2013 Definition with Examples<\/p>\n<p>https:\/\/www.splashlearn.com\/math-vocabulary\/addition\/sum<\/p>\n<p>Sum<\/p>\n<p>https:\/\/byjus.com\/maths\/sum\/<\/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>Ph\u00e9p c\u1ed9ng l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n nh\u1ea5t trong to\u00e1n h\u1ecdc, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng xuy\u00ean su\u1ed1t t\u1eeb nh\u1eefng b\u00e0i h\u1ecdc c\u01a1 b\u1ea3n cho \u0111\u1ebfn n\u00e2ng cao, t\u1eeb trong to\u00e1n h\u1ecdc \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng. V\u1eady \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ph\u00e9p c\u1ed9ng l\u00e0 g\u00ec? H\u00e3y c\u00f9ng Shining Home &#8211; Gia \u0111\u00ecnh Anh&#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-17667","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/17667","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=17667"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/17667\/revisions"}],"predecessor-version":[{"id":24018,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/17667\/revisions\/24018"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=17667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=17667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=17667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}