{"id":1146,"date":"2026-05-05T06:19:23","date_gmt":"2026-05-05T06:19:23","guid":{"rendered":"https:\/\/79.buffdemo.com\/index.php\/2026\/05\/05\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an\/"},"modified":"2026-05-05T08:00:55","modified_gmt":"2026-05-05T08:00:55","slug":"bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an","status":"publish","type":"post","link":"https:\/\/79.buffdemo.com\/index.php\/2026\/05\/05\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an\/","title":{"rendered":"B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 8 Ch\u01b0\u01a1ng Tr\u00ecnh M\u1edbi C\u00f3 \u0110\u00e1p \u00c1n"},"content":{"rendered":"<p>B\u1ea1n c\u00f3 \u0111ang lo l\u1eafng v\u1ec1 k\u1ef3 thi cu\u1ed1i h\u1ecdc k\u1ef3 1 to\u00e1n 8? \u0110\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng b\u00e0i t\u1eadp t\u1ee9 gi\u00e1c, \u0111\u1ecbnh l\u00ed Thal\u00e8s hay c\u00e1c d\u1ea1ng ph\u00e2n t\u00edch \u0111a th\u1ee9c th\u00e0nh nh\u00e2n t\u1eed th\u01b0\u1eddng khi\u1ebfn b\u1ea1n m\u1ea5t \u0111i\u1ec3m oan? Th\u1ef1c t\u1ebf, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec3m 8-9, b\u1ea1n c\u1ea7n \u00f4n t\u1eadp c\u00f3 ph\u01b0\u01a1ng ph\u00e1p v\u00e0 ph\u1ea3i gi\u1ea3i \u0111\u01b0\u1ee3c c\u00e1c c\u00e2u h\u1ecfi v\u1eadn d\u1ee5ng cao (chi\u1ebfm kho\u1ea3ng 30% \u0111i\u1ec3m s\u1ed1) m\u1ed9t c\u00e1ch t\u1ef1 tin. <strong>B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 8<\/strong> ch\u00ednh l\u00e0 gi\u1ea3i ph\u00e1p luy\u1ec7n t\u1eadp to\u00e0n di\u1ec7n, \u0111\u01b0\u1ee3c bi\u00ean so\u1ea1n b\u00e1m s\u00e1t khung ma tr\u1eadn chu\u1ea9n c\u1ee7a s\u00e1ch k\u1ebft n\u1ed1i tri th\u1ee9c. C\u00f9ng <a href=\"https:\/\/tailieuonthi.edu.vn\/\" rel=\"noopener\" target=\"_blank\"><strong>T\u00e0i Li\u1ec7u \u00d4n Thi<\/strong><\/a> tham kh\u1ea3o \u0111\u1ec3 s\u1eb5n s\u00e0ng chinh ph\u1ee5c m\u1ee5c ti\u00eau \u0111i\u1ec3m cao.<\/p>\n<h2><strong>B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 8 c\u00f3 g\u00ec \u0111\u1eb7c bi\u1ec7t?<\/strong><\/h2>\n<p>B\u1ed9 \u0111\u1ec1 n\u00e0y l\u00e0 c\u00f4ng c\u1ee5 ki\u1ec3m tra v\u00e0 \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c hi\u1ec7u qu\u1ea3 nh\u1ea5t cho h\u1ecdc sinh l\u1edbp 8:<\/p>\n<ul>\n<li><strong>Ph\u1ee7 k\u00edn ki\u1ebfn th\u1ee9c h\u1ecdc k\u1ef3 1:<\/strong> B\u1ed9 \u0111\u1ec1 bao g\u1ed3m \u0111\u1ea7y \u0111\u1ee7 5 chuy\u00ean \u0111\u1ec1 ch\u00ednh m\u00e0 b\u1ea1n s\u1ebd g\u1eb7p trong \u0111\u1ec1 thi cu\u1ed1i k\u1ef3: \u0110a th\u1ee9c, h\u1eb1ng \u0111\u1eb3ng th\u1ee9c, t\u1ee9 gi\u00e1c, \u0111\u1ecbnh l\u00ed Thal\u00e8s v\u00e0 d\u1eef li\u1ec7u &amp; bi\u1ec3u \u0111\u1ed3.<\/li>\n<li><strong>C\u1ea5u tr\u00fac gi\u1ed1ng nh\u01b0 \u0111\u1ec1 thi th\u1eadt:<\/strong> T\u1eebng \u0111\u1ec1 thi \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chu\u1ea9n theo ma tr\u1eadn \u0111\u1ec1 c\u1ee7a B\u1ed9 GD\u0110T, v\u1edbi t\u1ef7 l\u1ec7 c\u00e2u h\u1ecfi nh\u1eadn bi\u1ebft, th\u00f4ng hi\u1ec3u (n\u1ec1n t\u1ea3ng) v\u00e0 v\u1eadn d\u1ee5ng, v\u1eadn d\u1ee5ng cao (n\u00e2ng cao). \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n l\u00e0m quen v\u00e0 t\u1ef1 tin h\u01a1n v\u1edbi c\u1ea5u tr\u00fac \u0111\u1ec1 thi ch\u00ednh th\u1ee9c.<\/li>\n<li><strong>K\u1ebft h\u1ee3p tr\u1eafc nghi\u1ec7m v\u00e0 t\u1ef1 lu\u1eadn:<\/strong> B\u1ed9 \u0111\u1ec1 r\u00e8n luy\u1ec7n k\u1ef9 n\u0103ng gi\u1ea3i c\u1ea3 hai ph\u1ea7n, gi\u00fap b\u1ea1n l\u00e0m nhanh c\u00e1c c\u00e2u tr\u1eafc nghi\u1ec7m l\u1ea5y \u0111i\u1ec3m n\u1ec1n v\u00e0 tr\u00ecnh b\u00e0y b\u00e0i gi\u1ea3i t\u1ef1 lu\u1eadn c\u00e1c c\u00e2u kh\u00f3 m\u1ed9t c\u00e1ch khoa h\u1ecdc.<\/li>\n<\/ul>\n<h2><strong>N\u1ed9i dung B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 8<\/strong><\/h2>\n<p><a href=\"https:\/\/tailieuonthi.edu.vn\/lop-8\/toan-8\/\" rel=\"noopener\" target=\"_blank\"><strong>T\u00e0i li\u1ec7u to\u00e1n 8<\/strong><\/a> \u0111\u01b0\u1ee3c chia th\u00e0nh hai ph\u1ea7n ch\u00ednh: \u0110\u1ec1 b\u00e0i v\u00e0 \u0110\u00e1p \u00e1n chi ti\u1ebft, gi\u00fap h\u1ecdc sinh d\u1ec5 d\u00e0ng t\u1ef1 h\u1ecdc v\u00e0 ki\u1ec3m tra k\u1ebft qu\u1ea3.<\/p>\n<h3><strong>Ph\u1ea7n \u0111\u1ec1 b\u00e0i<\/strong><\/h3>\n<p>C\u00e1c \u0111\u1ec1 thi trong b\u1ed9 t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 h\u1ee3p l\u00fd, t\u1eeb d\u1ec5 \u0111\u1ebfn kh\u00f3, gi\u00fap h\u1ecdc sinh luy\u1ec7n t\u1eadp t\u1eebng b\u01b0\u1edbc.<\/p>\n<p><strong>Chuy\u00ean \u0111\u1ec1 \u0111\u1ea1i s\u1ed1:<\/strong><\/p>\n<ul>\n<li>\u0110a th\u1ee9c nhi\u1ec1u bi\u1ebfn v\u00e0 H\u1eb1ng \u0111\u1eb3ng th\u1ee9c: T\u1eadp trung v\u00e0o vi\u1ec7c th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh, r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c, v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 k\u1ef9 n\u0103ng ph\u00e2n t\u00edch \u0111a th\u1ee9c th\u00e0nh nh\u00e2n t\u1eed.<\/li>\n<li>B\u00e0i to\u00e1n t\u00ecm gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t\/nh\u1ecf nh\u1ea5t (GTLN\/GTNN): \u0110\u00e2y l\u00e0 nh\u00f3m c\u00e2u h\u1ecfi V\u1eadn d\u1ee5ng cao th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n \u0111\u1ec3 ph\u00e2n lo\u1ea1i h\u1ecdc sinh.<\/li>\n<\/ul>\n<p><strong>Chuy\u00ean \u0111\u1ec1 h\u00ecnh h\u1ecdc:<\/strong><\/p>\n<ul>\n<li>T\u1ee9 gi\u00e1c: C\u00e1c b\u00e0i t\u1eadp v\u1ec1 nh\u1eadn bi\u1ebft, ch\u1ee9ng minh t\u00ednh ch\u1ea5t c\u1ee7a c\u00e1c h\u00ecnh \u0111\u1eb7c bi\u1ec7t nh\u01b0 h\u00ecnh thang c\u00e2n, h\u00ecnh b\u00ecnh h\u00e0nh, h\u00ecnh thoi, h\u00ecnh vu\u00f4ng.<\/li>\n<li>\u0110\u1ecbnh l\u00ed Tal\u00e8s: \u1ee8ng hd\u1ee5ng \u0111\u1ecbnh l\u00ed Thal\u00e8s v\u00e0 t\u00ednh ch\u1ea5t \u0111\u01b0\u1eddng ph\u00e2n gi\u00e1c \u0111\u1ec3 t\u00ednh to\u00e1n \u0111\u1ed9 d\u00e0i \u0111o\u1ea1n th\u1eb3ng trong tam gi\u00e1c.<\/li>\n<\/ul>\n<p><strong>Chuy\u00ean \u0111\u1ec1 d\u1eef li\u1ec7u v\u00e0 x\u00e1c su\u1ea5t:<\/strong><\/p>\n<ul>\n<li>Thu th\u1eadp v\u00e0 bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u: C\u00e1c c\u00e2u h\u1ecfi li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u1ecdc, ph\u00e2n t\u00edch bi\u1ec3u \u0111\u1ed3 \u0111o\u1ea1n th\u1eb3ng, bi\u1ec3u \u0111\u1ed3 c\u1ed9t k\u00e9p, ho\u1eb7c l\u1ef1a ch\u1ecdn lo\u1ea1i bi\u1ec3u \u0111\u1ed3 ph\u00f9 h\u1ee3p.<\/li>\n<\/ul>\n<h3><strong>Ph\u1ea7n \u0111\u00e1p \u00e1n<\/strong><\/h3>\n<p>B\u1ed9 t\u00e0i li\u1ec7u n\u00e0y c\u00f3 k\u00e8m theo \u0111\u00e1p \u00e1n r\u1ea5t chi ti\u1ebft. Ph\u1ea7n \u0111\u00e1p \u00e1n s\u1ebd cho b\u1ea1n bi\u1ebft k\u1ebft qu\u1ea3 \u0111\u00fang v\u00e0 h\u01b0\u1edbng d\u1eabn c\u00e1ch tr\u00ecnh b\u00e0y v\u00e0 suy lu\u1eadn t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 gi\u1ea3i quy\u1ebft b\u00e0i to\u00e1n. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng v\u1edbi c\u00e1c c\u00e2u t\u1ef1 lu\u1eadn, gi\u00fap b\u1ea1n tr\u00e1nh m\u1ea5t \u0111i\u1ec3m v\u00ec tr\u00ecnh b\u00e0y thi\u1ebfu logic ho\u1eb7c s\u00f3t b\u01b0\u1edbc gi\u1ea3i.<\/p>\n<p><img loading=\"lazy\" alt=\"\" class=\"aligncenter size-full wp-image-6307\" decoding=\"async\" height=\"566\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-3.jpg\" srcset=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-3.jpg 800w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-3-300x212.jpg 300w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-3-768x543.jpg 768w\" width=\"800\"\/> <img loading=\"lazy\" alt=\"\" class=\"aligncenter size-full wp-image-6308\" decoding=\"async\" height=\"566\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-2.jpg\" srcset=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-2.jpg 800w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-2-300x212.jpg 300w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-2-768x543.jpg 768w\" width=\"800\"\/> <img alt=\"\" class=\"aligncenter size-full wp-image-6309\" decoding=\"async\" height=\"566\" loading=\"lazy\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-1.jpg\" srcset=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-1.jpg 800w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-1-300x212.jpg 300w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/12\/bo-de-thi-cuoi-ki-1-toan-8-chuong-trinh-moi-co-dap-an-1-768x543.jpg 768w\" width=\"800\"\/><\/p>\n<h2><strong>T\u1ea3i B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 8<\/strong><\/h2>\n<p>B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 8 l\u00e0 h\u00e0nh trang c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea1n t\u1ef1 tin b\u01b0\u1edbc v\u00e0o k\u1ef3 thi s\u1eafp t\u1edbi. \u0110\u1ec3 ch\u1ee7 \u0111\u1ed9ng \u00f4n t\u1eadp v\u00e0 luy\u1ec7n gi\u1ea3i c\u00e1c d\u1ea1ng \u0111\u1ec1 s\u00e1t nh\u1ea5t v\u1edbi c\u1ea5u tr\u00fac thi th\u1eadt, b\u1ea1n h\u00e3y t\u1ea3i ngay b\u1ed9 t\u00e0i li\u1ec7u \u0111\u1ea7y \u0111\u1ee7 n\u00e0y v\u1ec1 m\u00e1y v\u00e0 b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh chinh ph\u1ee5c \u0111i\u1ec3m cao c\u00f9ng Tailieuonthi ngay h\u00f4m nay!<\/p>\n<p><a class=\"custom-button\" href=\"https:\/\/drive.google.com\/drive\/folders\/1SEvQfPFB3LM1MIkzCnfP85ROP9gQ1pJi\" rel=\"nofollow noopener\" target=\"_blank\">T\u1ea3i B\u1ed9 \u0111\u1ec1 ki\u1ec3m tra CU\u1ed0I H\u1eccC K\u00cc 1 TO\u00c1N 8 2024-2025 (K\u1ebft N\u1ed1i Tri th\u1ee9c)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ea1n c\u00f3 \u0111ang lo l\u1eafng v\u1ec1 k\u1ef3 thi cu\u1ed1i h\u1ecdc k\u1ef3 1 to\u00e1n 8? \u0110\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng b\u00e0i t\u1eadp t\u1ee9 gi\u00e1c, \u0111\u1ecbnh l\u00ed Thal\u00e8s hay c\u00e1c d\u1ea1ng ph\u00e2n t\u00edch \u0111a th\u1ee9c th\u00e0nh nh\u00e2n t\u1eed th\u01b0\u1eddng khi\u1ebfn b\u1ea1n m\u1ea5t \u0111i\u1ec3m oan? Th\u1ef1c t\u1ebf, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec3m 8-9, b\u1ea1n c\u1ea7n \u00f4n t\u1eadp c\u00f3 ph\u01b0\u01a1ng ph\u00e1p [&#8230;]\n","protected":false},"author":1,"featured_media":2344,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117],"tags":[118],"class_list":["post-1146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-toan-8","tag-toan-8"],"_links":{"self":[{"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/posts\/1146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/comments?post=1146"}],"version-history":[{"count":1,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/posts\/1146\/revisions"}],"predecessor-version":[{"id":2345,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/posts\/1146\/revisions\/2345"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/media\/2344"}],"wp:attachment":[{"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/media?parent=1146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/categories?post=1146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/tags?post=1146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}