{"id":1122,"date":"2026-05-05T06:18:05","date_gmt":"2026-05-05T06:18:05","guid":{"rendered":"https:\/\/79.buffdemo.com\/index.php\/2026\/05\/05\/bo-de-thi-cuoi-ki-1-toan-9\/"},"modified":"2026-05-05T07:59:35","modified_gmt":"2026-05-05T07:59:35","slug":"bo-de-thi-cuoi-ki-1-toan-9","status":"publish","type":"post","link":"https:\/\/79.buffdemo.com\/index.php\/2026\/05\/05\/bo-de-thi-cuoi-ki-1-toan-9\/","title":{"rendered":"B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9 Ch\u01b0\u01a1ng Tr\u00ecnh M\u1edbi C\u00f3 \u0110\u00e1p \u00c1n"},"content":{"rendered":"<p>K\u1ef3 thi cu\u1ed1i k\u00ec 1 to\u00e1n 9 \u0111ang \u0111\u1ebfn g\u1ea7n, b\u1ea1n \u0111\u00e3 th\u1ef1c s\u1ef1 s\u1eb5n s\u00e0ng \u0111\u1ed1i m\u1eb7t v\u1edbi c\u1ea5u tr\u00fac \u0111\u1ec1 thi 30% tr\u1eafc nghi\u1ec7m v\u00e0 70% t\u1ef1 lu\u1eadn ch\u01b0a? C\u00e1c ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m nh\u01b0 r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c ch\u1ee9a c\u0103n hay h\u00ecnh h\u1ecdc \u0111\u01b0\u1eddng tr\u00f2n lu\u00f4n \u0111\u00f2i h\u1ecfi s\u1ef1 \u00f4n luy\u1ec7n chuy\u00ean s\u00e2u v\u00e0 s\u00e1t \u0111\u1ec1. \u0110\u1eebng lo l\u1eafng, <strong>B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9<\/strong> s\u1ebd l\u00e0 \u201cb\u00ed k\u00edp\u201d gi\u00fap b\u1ea1n luy\u1ec7n t\u1eadp y h\u1ec7t \u0111\u1ec1 thi th\u1eadt. C\u00f9ng <a href=\"https:\/\/tailieuonthi.edu.vn\/\" rel=\"noopener\" target=\"_blank\"><strong>Tailieuonthi<\/strong><\/a> kh\u00e1m ph\u00e1 gi\u00e1 tr\u1ecb c\u1ed1t l\u00f5i c\u1ee7a b\u1ed9 t\u00e0i li\u1ec7u \u0111\u1eb7c bi\u1ec7t n\u00e0y!<\/p>\n<h2><strong>V\u00ec sao n\u00ean ch\u1ecdn B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9<\/strong><\/h2>\n<p>B\u1ed9 \u0111\u1ec1 n\u00e0y l\u00e0 c\u00f4ng c\u1ee5 luy\u1ec7n thi th\u1ef1c chi\u1ebfn, gi\u00fap h\u1ecdc sinh l\u1edbp 9 t\u1ef1 tin b\u01b0\u1edbc v\u00e0o k\u1ef3 thi cu\u1ed1i h\u1ecdc k\u1ef3 1.<\/p>\n<ul>\n<li><strong>\u0110\u00fang chu\u1ea9n c\u1ea5u tr\u00fac thi:<\/strong> B\u1ed9 \u0111\u1ec1 tu\u00e2n th\u1ee7 ch\u1eb7t ch\u1ebd t\u1ec9 l\u1ec7 30% tr\u1eafc nghi\u1ec7m v\u00e0 70% t\u1ef1 lu\u1eadn. T\u1ef7 l\u1ec7 n\u00e0y gi\u00fap b\u1ea1n luy\u1ec7n t\u1eadp v\u00e0 l\u00e0m quen v\u1edbi c\u00e1ch ph\u00e2n b\u1ed5 th\u1eddi gian nh\u01b0 \u0111\u1ec1 thi ch\u00ednh th\u1ee9c.<\/li>\n<li><strong>\u00d4n t\u1eadp tr\u1ecdn v\u1eb9n:<\/strong> T\u00e0i li\u1ec7u bao g\u1ed3m t\u1ea5t c\u1ea3 ki\u1ebfn th\u1ee9c quan tr\u1ecdng c\u1ee7a h\u1ecdc k\u1ef3 I. C\u00e1c chuy\u00ean \u0111\u1ec1 ch\u00ednh nh\u01b0 c\u0103n th\u1ee9c, h\u1ec7 ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 h\u00ecnh h\u1ecdc \u0111\u01b0\u1eddng tr\u00f2n \u0111\u1ec1u c\u00f3 m\u1eb7t \u0111\u1ea7y \u0111\u1ee7 trong \u0111\u1ec1 thi.<\/li>\n<li><strong>L\u1eddi gi\u1ea3i si\u00eau d\u1ec5 hi\u1ec3u:<\/strong> M\u1ed7i c\u00e2u h\u1ecfi \u0111\u1ec1u \u0111i k\u00e8m l\u1eddi gi\u1ea3i chi ti\u1ebft, gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng t\u1eebng b\u01b0\u1edbc l\u00e0m. B\u1ea1n s\u1ebd kh\u00f4ng s\u1ee3 l\u00e0m xong m\u00e0 v\u1eabn ch\u01b0a hi\u1ec3u c\u00e1ch l\u00e0m \u0111\u00fang v\u00e0 t\u1ed1i \u01b0u nh\u1ea5t.<\/li>\n<\/ul>\n<h2><strong>N\u1ed9i dung B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9<\/strong><\/h2>\n<p>B\u1ed9 <a href=\"https:\/\/tailieuonthi.edu.vn\/lop-9\/toan-9\/\" rel=\"noopener\" target=\"_blank\"><strong>t\u00e0i li\u1ec7u to\u00e1n 9<\/strong><\/a> \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp logic, m\u00f4 ph\u1ecfng m\u1ed9t \u0111\u1ec1 thi th\u1eadt, gi\u00fap b\u1ea1n \u00f4n luy\u1ec7n c\u00f3 \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 cao.<\/p>\n<h3><strong>Ph\u1ea7n \u0111\u1ec1 b\u00e0i<\/strong><\/h3>\n<p>\u0110\u1ec1 thi \u0111\u01b0\u1ee3c ph\u00e2n chia \u0111\u1ed9 kh\u00f3 h\u1ee3p l\u00fd, gi\u00fap b\u1ea1n \u00f4n t\u1eadp theo l\u1ed9 tr\u00ecnh r\u00f5 r\u00e0ng, b\u00e1m s\u00e1t ma tr\u1eadn ki\u1ebfn th\u1ee9c.<\/p>\n<p><strong>30% tr\u1eafc nghi\u1ec7m (D\u1ec5 l\u1ea5y \u0111i\u1ec3m):<\/strong> T\u1eadp trung v\u00e0o c\u00e1c c\u00e2u h\u1ecfi nh\u1eadn bi\u1ebft v\u00e0 th\u00f4ng hi\u1ec3u v\u1ec1 l\u00fd thuy\u1ebft n\u1ec1n t\u1ea3ng. V\u00ed d\u1ee5: X\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n c\u1ee7a c\u0103n th\u1ee9c, nh\u1eadn d\u1ea1ng H\u1ec7 ph\u01b0\u01a1ng tr\u00ecnh b\u1eadc nh\u1ea5t hai \u1ea9n.<\/p>\n<p><strong>70% t\u1ef1 lu\u1eadn (Ph\u1ea7n quy\u1ebft \u0111\u1ecbnh \u0111i\u1ec3m cao):<\/strong><\/p>\n<ul>\n<li><strong>B\u00e0i to\u00e1n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c:<\/strong> \u0110\u00e2y lu\u00f4n l\u00e0 b\u00e0i \u201ct\u1ee7\u201d gi\u00fap b\u1ea1n l\u1ea5y ch\u1eafc 2,0 \u0111i\u1ec3m \u0111\u1ea7u ti\u00ean c\u1ee7a ph\u1ea7n t\u1ef1 lu\u1eadn.<\/li>\n<li><strong>B\u00e0i to\u00e1n th\u1ef1c t\u1ebf:<\/strong> G\u1ed3m c\u00e1c d\u1ea1ng to\u00e1n h\u1ec7 ph\u01b0\u01a1ng tr\u00ecnh c\u00f3 l\u1eddi v\u0103n ho\u1eb7c \u1ee9ng d\u1ee5ng t\u1ec9 s\u1ed1 l\u01b0\u1ee3ng gi\u00e1c \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf (t\u00ednh chi\u1ec1u cao, kho\u1ea3ng c\u00e1ch).<\/li>\n<li><strong>H\u00ecnh h\u1ecdc \u0111\u01b0\u1eddng tr\u00f2n (V\u1eadn d\u1ee5ng):<\/strong> B\u00e0i t\u1eadp ch\u1ee9ng minh ph\u1ee9c t\u1ea1p h\u01a1n li\u00ean quan \u0111\u1ebfn ti\u1ebfp tuy\u1ebfn, d\u00e2y cung, g\u00f3c. \u0110\u00e2y l\u00e0 nh\u1eefng c\u00e2u h\u1ecfi mang t\u00ednh ph\u00e2n lo\u1ea1i, d\u00e0nh cho nh\u1eefng b\u1ea1n \u0111\u1eb7t m\u1ee5c ti\u00eau \u0111i\u1ec3m 9, 10.<\/li>\n<\/ul>\n<h3><strong>Ph\u1ea7n \u0111\u00e1p \u00e1n<\/strong><\/h3>\n<p>B\u1ed9 \u0111\u1ec1 \u0111i k\u00e8m \u0111\u00e1p \u00e1n \u0111\u1ea7y \u0111\u1ee7 v\u00e0 l\u1eddi gi\u1ea3i chi ti\u1ebft, gi\u00fap b\u1ea1n h\u1ecdc h\u1ecfi ph\u01b0\u01a1ng ph\u00e1p l\u00e0m b\u00e0i m\u1ed9t c\u00e1ch t\u1ed1t nh\u1ea5t.<\/p>\n<p><img loading=\"lazy\" alt=\"\" class=\"aligncenter size-full wp-image-6228\" decoding=\"async\" height=\"1132\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-3.jpg\" srcset=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-3.jpg 800w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-3-212x300.jpg 212w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-3-724x1024.jpg 724w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-3-768x1087.jpg 768w\" width=\"800\"\/> <img loading=\"lazy\" alt=\"\" class=\"aligncenter size-full wp-image-6229\" decoding=\"async\" height=\"1132\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-2.jpg\" srcset=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-2.jpg 800w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-2-212x300.jpg 212w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-2-724x1024.jpg 724w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-2-768x1087.jpg 768w\" width=\"800\"\/> <img alt=\"\" class=\"aligncenter size-full wp-image-6230\" decoding=\"async\" height=\"1132\" loading=\"lazy\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-1.jpg\" srcset=\"https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-1.jpg 800w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-1-212x300.jpg 212w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-1-724x1024.jpg 724w, https:\/\/tailieuonthi.edu.vn\/wp-content\/uploads\/2025\/11\/bo-de-thi-cuoi-ki-1-toan-9-1-768x1087.jpg 768w\" width=\"800\"\/><\/p>\n<h2><strong>T\u1ea3i B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9<\/strong><\/h2>\n<p>\u0110\u00e2y l\u00e0 t\u00e0i li\u1ec7u luy\u1ec7n t\u1eadp thi\u1ebft y\u1ebfu \u0111\u1ec3 b\u1ea1n l\u00e0m ch\u1ee7 ki\u1ebfn th\u1ee9c v\u00e0 t\u1ef1 tin \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 cao nh\u1ea5t. H\u00e3y t\u1ea3i ngay <strong>B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9<\/strong> n\u00e0y v\u1ec1 m\u00e1y \u0111\u1ec3 b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh \u00f4n luy\u1ec7n v\u00e0 gi\u00e0nh tr\u1ecdn \u0111i\u1ec3m 9+ ngay h\u00f4m nay!<\/p>\n<p><a class=\"custom-button\" href=\"https:\/\/drive.google.com\/drive\/folders\/1hS4RT1-LO_LMm8DkoHxh0y9CfKDsrfLk\" rel=\"nofollow noopener\" target=\"_blank\">T\u1ea3i B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9 n\u0103m 2025 T\u1ec9 l\u1ec7 3-7 (D\u00f9ng chung 3 s\u00e1ch)<\/a><\/p>\n<p><a class=\"custom-button\" href=\"https:\/\/drive.google.com\/drive\/folders\/1NwrCjsDWO0E52cpjoitUuHck85WvIcm5\" rel=\"nofollow noopener\" target=\"_blank\">T\u1ea3i B\u1ed9 \u0110\u1ec1 Thi Cu\u1ed1i K\u00ec 1 To\u00e1n 9 n\u0103m 2025 T\u1ec9 l\u1ec7 100% t\u1ef1 lu\u1eadn (D\u00f9ng chung 3 s\u00e1ch)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>K\u1ef3 thi cu\u1ed1i k\u00ec 1 to\u00e1n 9 \u0111ang \u0111\u1ebfn g\u1ea7n, b\u1ea1n \u0111\u00e3 th\u1ef1c s\u1ef1 s\u1eb5n s\u00e0ng \u0111\u1ed1i m\u1eb7t v\u1edbi c\u1ea5u tr\u00fac \u0111\u1ec1 thi 30% tr\u1eafc nghi\u1ec7m v\u00e0 70% t\u1ef1 lu\u1eadn ch\u01b0a? C\u00e1c ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m nh\u01b0 r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c ch\u1ee9a c\u0103n hay h\u00ecnh h\u1ecdc \u0111\u01b0\u1eddng tr\u00f2n lu\u00f4n \u0111\u00f2i h\u1ecfi s\u1ef1 \u00f4n luy\u1ec7n chuy\u00ean [&#8230;]\n","protected":false},"author":1,"featured_media":2320,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[114],"class_list":["post-1122","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-toan-9","tag-toan-9"],"_links":{"self":[{"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/posts\/1122","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=1122"}],"version-history":[{"count":1,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/posts\/1122\/revisions"}],"predecessor-version":[{"id":2321,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/posts\/1122\/revisions\/2321"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/media\/2320"}],"wp:attachment":[{"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/media?parent=1122"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/categories?post=1122"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/79.buffdemo.com\/index.php\/wp-json\/wp\/v2\/tags?post=1122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}