{"common":{"save":0,"post_id":"4816","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8526","post_id":"4816","mon_id":"1158113","chapter_id":"1158117","question":"<p>Vi\u1ebft s\u1ed1 <strong>329<\/strong> thành t\u1ed5ng giá tr\u1ecb các ch\u1eef s\u1ed1 c\u1ee7a nó b\u1eb1ng cách dùng các l\u0169y th\u1eeba c\u1ee7a 10<b>.<\/b><\/p>","options":[" <strong>A. <\/strong>329 = 3 . 10 + 2 . 10 + 9","<strong>B. <\/strong>329 = 3 . 10<span class=\"math-tex\">$^2$<\/span> + 2 . 10<span class=\"math-tex\">$^1$<\/span> + 9","<strong>C. <\/strong>329 = 3 . 10 + 2 . 10<span class=\"math-tex\">$^2$<\/span> + 9"],"correct":"2","level":"2","hint":"<p>100 = 10<span class=\"math-tex\">$^2$<\/span><\/p><p>10 = 10<span class=\"math-tex\">$^1$<\/span><\/p>","answer":"<p>329 = 300 + 20 + 9<\/p><p> = 3 . 100 + 2 . 10 + 9<\/p><p> = 3 . 10<span class=\"math-tex\">$^2$<\/span> + 2 . 10<span class=\"math-tex\">$^1$<\/span> + 9<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>B. 329 = 3 . 10<span class=\"math-tex\">$^2$<\/span> + 2 . 10<span class=\"math-tex\">$^1$<\/span> + 9<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-06 03:30:06","option_type":"math","len":0},{"id":"8527","post_id":"4816","mon_id":"1158113","chapter_id":"1158117","question":"<p>Tính <\/p><p>100<span class=\"math-tex\">$^2$<\/span> = ?<\/p>","options":["10 000","100","200"],"correct":"1","level":"2","hint":"<p>L\u0169y th\u1eeba b\u1eadc n c\u1ee7a s\u1ed1 t\u1ef1 nhiên a là tích c\u1ee7a n th\u1eeba s\u1ed1 b\u1eb1ng nhau, m\u1ed7i th\u1eeba s\u1ed1 b\u1eb1ng a:<\/p><p>a<span class=\"math-tex\">$^n$<\/span> = a . a . ... . a (có n th\u1eeba s\u1ed1 a, n∈<span class=\"math-tex\">$\\mathbb{N}^*$<\/span>)<\/p>","answer":"<p>100<span class=\"math-tex\">$^2$<\/span> = 100 . 100 = 10 000<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>10 000<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-06 03:31:24","option_type":"txt","len":0},{"id":"8528","post_id":"4816","mon_id":"1158113","chapter_id":"1158117","question":"<p>Vi\u1ebft k\u1ebft qu\u1ea3 c\u1ee7a phép nhân sau d\u01b0\u1edbi d\u1ea1ng l\u0169y th\u1eeba c\u1ee7a 8:<\/p><p>8<span class=\"math-tex\">$^3$<\/span> . 8<span class=\"math-tex\">$^6$<\/span> = ?<\/p>","options":["8<span class=\"math-tex\">$^6$<\/span>","8<span class=\"math-tex\">$^8$<\/span>","8<span class=\"math-tex\">$^9$<\/span>"],"correct":"3","level":"2","hint":"<p>Khi nhân hai l\u0169y th\u1eeba cùng c\u01a1 s\u1ed1, ta gi\u1eef nguyên c\u01a1 s\u1ed1 và c\u1ed9ng các s\u1ed1 m\u0169 v\u1edbi nhau:<\/p><p>a<span class=\"math-tex\">$^m$<\/span> . a<span class=\"math-tex\">$^n$<\/span> = a<span class=\"math-tex\">$^{m+n}$<\/span><\/p>","answer":"<p>8<span class=\"math-tex\">$^3$<\/span> . 8<span class=\"math-tex\">$^6$<\/span> = 8<span class=\"math-tex\">$^{3+6}$<\/span> = 8<span class=\"math-tex\">$^9$<\/span><\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong> 8<span class=\"math-tex\">$^9$<\/span><\/strong><\/span><\/p>","type":"choose","extra_type":"flower","time":"0","user_id":"132","test":"1","date":"2021-10-06 03:36:27","option_type":"math","len":0}]}