{"common":{"save":0,"post_id":"725","level":2,"total":20,"point":5,"point_extra":0},"segment":[{"id":"371","post_id":"725","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='img\/2.jpg' \/><\/center> <br\/> T\u00ednh. $15 . 2^3 + 4.3^2 - 5.7 = ?$","select":["A. 120 ","B. 121 ","C. 122 ","D. 123 "],"hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} & 15 . 2^3 + 4.3^2 - 5.7 \\\\ =& 15 . 8 + 4 . 9 - 5 . 7 \\\\ =& 120 + 36 - 35 \\\\ =& 156 - 35 \\\\ =& 121 \\end{align*}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B<\/span> ","column":2}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:40"},{"id":"372","post_id":"725","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='img\/2.jpg' \/><\/center> <br\/> T\u00ednh. $7^9 : 7^7 - 3^2 + 2^3 . 5^2 = ?$","select":["A. 230 ","B. 240 ","C. 249 ","D. 250 "],"hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} & 7^9 : 7^7 - 3^2 + 2^3 . 5^2 \\\\ =& 7^{9 - 7} - 9 + 8 . 25 \\\\ =& 7^2 - 9 + 8 . 25 \\\\ =& 49 - 9 + 200 \\\\ =& 40 + 200 \\\\ =& 240 \\end{align*}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B<\/span> ","column":2}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:41"},{"id":"373","post_id":"725","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='img\/2.jpg' \/><\/center> <br\/> T\u00ednh. $27 : 3^2 + 5.2^4 - 6^2 : 9 = ?$","select":["A. 79 ","B. 97 ","C. 39 ","D. 45 "],"hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} & 27 : 3^2 + 5.2^4 - 6^2 : 9 \\\\ =& 27 : 9 + 5 . 16 - 36 : 9 \\\\ =& 3 + 80 - 4 \\\\ =& 83 - 4 \\\\ =& 79 \\end{align*}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A<\/span> ","column":2}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:41"}]}