T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 9 – Arkady Leokum<\/p>\n\n\n\n
Ng\u01b0\u1eddi \u1ea3 R\u1eadp qu\u1ea3 l\u00e0 m\u1ed9t d\u00e2n t\u1ed9c v\u0129 \u0111\u1ea1i, ng\u01b0\u1eddi ch\u00e2u \u00e2u h\u1ecdc h\u1ecfi kh\u00f4ng \u00edt \u0111i\u1ec1u \u1edf ng\u01b0\u1eddi \u1ea3 R\u1eadp.<\/p>\n\n\n\n
N\u1ebfu ng\u01b0\u1eddi Phoenici \u0111\u00e3 s\u00e1ng t\u1ea1o ra m\u1eabu t\u1ef1 th\u00ec ch\u1eef s\u1ed1 m\u00e0 ch\u00fang ta d\u00f9ng trong s\u1ed1 h\u1ecdc hi\u1ec7n nay l\u1ea1i l\u00e0 do ng\u01b0\u1eddi \u1ea3 R\u1eadp s\u00e1ng t\u1ea1o ra. Nh\u1eefng ch\u1eef s\u1ed1 1, 2, 3, 4\u2026 \u0111\u1ec1u g\u1ecdi l\u00e0 ch\u1eef s\u1ed1 \u1ea3 R\u1eadp. Ng\u01b0\u1eddi La M\u00e3 th\u00ec d\u00f9ng t\u1ef1 m\u1eabu \u0111\u1ec3 thay ch\u1eef s\u1ed1, v thay 5, X thay 10, C thay 100, M thay 1.000\u2026<\/p>\n\n\n\n
Ng\u00e0y nay ch\u00fang ta l\u00e0m to\u00e1n c\u00f3 th\u1ec3 s\u1eafp nh\u1eefng con s\u1ed1 theo th\u1ee9 t\u1ef1 h\u00e0ng ch\u1ee5c, h\u00e0ng tr\u0103m, h\u00e0ng ng\u00e0n r\u1ed3i c\u1ee9 th\u1ebf m\u00e0 t\u00ednh ra; nh\u01b0ng \u0111\u1ed1i v\u1edbi nh\u1eefng ch\u1eef s\u1ed1 La M\u00e3 th\u00ec kh\u00f4ng th\u1ec3 s\u1eafp th\u00e0nh t\u1eebng h\u00e0ng nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c. B\u1ea1n th\u1eed ngh\u0129, n\u1ebfu nh\u01b0 d\u00f9ng ch\u1eef s\u1ed1 La M\u00e3 m\u00e0 l\u00e0m to\u00e1n c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia th\u00ec s\u1ebd kh\u00f3 kh\u0103n b\u1ea5t ti\u1ec7n \u0111\u1ebfn c\u1ee1 n\u00e0o.<\/p>\n\n\n\n
Ng\u00e0y nay, th\u1ec9nh tho\u1ea3ng b\u1ea1n v\u1eabn c\u00f2n th\u1ea5y ng\u01b0\u1eddi ta d\u00f9ng s\u1ed1 La M\u00e3 – v\u00ed nh\u01b0 tr\u00ean m\u1eb7t \u0111\u1ed3ng h\u1ed3 hay th\u1ee9 t\u1ef1 c\u1ee7a m\u1ed9t v\u0103n b\u1ea3n – nh\u01b0ng nh\u1eefng ch\u1eef s\u1ed1 m\u00e0 b\u1ea1n hi\u1ec7n t\u1ea1i d\u00f9ng l\u00e0m to\u00e1n h\u1eb1ng ng\u00e0y, nh\u1eefng ch\u1eef s\u1ed1 m\u00e0 ba m\u1eb9 b\u1ea1n s\u1eed d\u1ee5ng \u1edf ng\u00e2n h\u00e0ng, c\u1eeda hi\u1ec7u hay c\u00f4ng s\u1edf \u0111\u1ec1u l\u00e0 nh\u1eefng ch\u1eef s\u1ed1 \u1ea3 R\u1eadp.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 9 – Arkady Leokum Ng\u01b0\u1eddi \u1ea3 R\u1eadp qu\u1ea3 l\u00e0 m\u1ed9t d\u00e2n t\u1ed9c v\u0129 \u0111\u1ea1i, ng\u01b0\u1eddi ch\u00e2u \u00e2u h\u1ecdc h\u1ecfi kh\u00f4ng \u00edt \u0111i\u1ec1u \u1edf ng\u01b0\u1eddi \u1ea3 R\u1eadp. N\u1ebfu ng\u01b0\u1eddi Phoenici \u0111\u00e3 s\u00e1ng t\u1ea1o ra m\u1eabu t\u1ef1 th\u00ec ch\u1eef s\u1ed1 m\u00e0 ch\u00fang ta d\u00f9ng trong […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-15366","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15366","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=15366"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15366\/revisions"}],"predecessor-version":[{"id":15367,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15366\/revisions\/15367"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}