{"common":{"save":0,"post_id":"730","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"451","post_id":"730","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["11"]]],"list":[{"point":10,"width":60,"content":"","type_input":"","ques":"<center><img src='img\/11.jpg' \/><\/center> <br\/> T\u1ed5ng $\\overline{ab} + \\overline{ba}$ lu\u00f4n chia h\u1ebft cho: _input_ ","hint":"Vi\u1ebft $\\overline{ab}$ = 10 . a + b, t\u01b0\u01a1ng t\u1ef1 v\u1edbi $\\overline{ba}$","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Vi\u1ebft $\\overline{ab}$ = 10 . a + b, t\u01b0\u01a1ng t\u1ef1 $\\overline{ba}$ = b . 10 + a <br\/> Bi\u1ebfn \u0111\u1ed5i t\u1ed5ng tr\u00ean th\u00e0nh t\u00edch c\u1ee7a m\u1ed9t s\u1ed1 t\u1ef1 nhi\u00ean v\u00e0 \u1ea9n <br\/> S\u1ed1 \u0111\u00f3 ch\u00ednh l\u00e0 s\u1ed1 m\u00e0 t\u1ed5ng tr\u00ean lu\u00f4n chia h\u1ebft <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> $\\begin{align*} \\overline{ab} + \\overline{ba} &= a . 10 + b + b . 10 + a \\\\ &= (a. 10 + a) + (b . 10 + b) \\\\ &= 11 . a + 11 . b \\\\ &= 11. (a + b) \\end{align*}$ <br\/> V\u1eady t\u1ed5ng $\\overline{ab} + \\overline{ba}$ $\\vdots$ 11 <br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 11 <\/span>"}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:41"},{"id":"452","post_id":"730","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["1"]]],"list":[{"point":10,"width":60,"content":"","type_input":"","ques":"<center><img src='img\/4.jpg' \/><\/center> <br\/> Cho A = 9413 . 12 + 930 . 48 + 11 + x <br\/> T\u00ecm x nh\u1ecf nh\u1ea5t \u0111\u1ec3 A chia h\u1ebft cho 12 <br\/> V\u1eady x = _input_","hint":"N\u1ebfu m\u1ecdi s\u1ed1 h\u1ea1ng trong t\u1ed5ng \u0111\u1ec1u chia h\u1ebft cho m\u1ed9t s\u1ed1 th\u00ec t\u1ed5ng chia h\u1ebft cho s\u1ed1 \u0111\u00f3","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> N\u1ebfu m\u1ecdi s\u1ed1 h\u1ea1ng trong t\u1ed5ng \u0111\u1ec1u chia h\u1ebft cho m\u1ed9t s\u1ed1 th\u00ec t\u1ed5ng chia h\u1ebft cho s\u1ed1 \u0111\u00f3<\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> V\u00ec 12 $\\vdots$ 12 n\u00ean 9413 . 12 $\\vdots$ 12 <br\/> V\u00ec 48 $\\vdots$ 12 n\u00ean 930 . 48 $\\vdots$ 12 <br\/> \u0110\u1ec3 A $\\vdots$ 12 th\u00ec (11 + x) $\\vdots$ 12 <br\/> A nh\u1ecf nh\u1ea5t chia h\u1ebft cho 12 khi x = 1<br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 1 <\/span>"}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:41"},{"id":"453","post_id":"730","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["7"]]],"list":[{"point":10,"width":60,"content":"","type_input":"","ques":"<center><img src='img\/4.jpg' \/><\/center> <br\/> Cho A = 30 . 11385 + 3 . 31754 . 5 + 23 + x <br\/> T\u00ecm x nh\u1ecf nh\u1ea5t \u0111\u1ec3 A chia h\u1ebft cho 15 <br\/> V\u1eady x = _input_","hint":"N\u1ebfu m\u1ecdi s\u1ed1 h\u1ea1ng trong t\u1ed5ng \u0111\u1ec1u chia h\u1ebft cho m\u1ed9t s\u1ed1 th\u00ec t\u1ed5ng chia h\u1ebft cho s\u1ed1 \u0111\u00f3","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> N\u1ebfu m\u1ecdi s\u1ed1 h\u1ea1ng trong t\u1ed5ng \u0111\u1ec1u chia h\u1ebft cho m\u1ed9t s\u1ed1 th\u00ec t\u1ed5ng chia h\u1ebft cho s\u1ed1 \u0111\u00f3 <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> V\u00ec 30 $\\vdots$ 15 n\u00ean 30 . 11385 $\\vdots$ 15 <br\/> V\u00ec 3 . 5 = 15 $\\vdots$ 15 n\u00ean 3 . 31754 . 5 $\\vdots$ 15 <br\/> \u0110\u1ec3 A $\\vdots$ 15 th\u00ec (23 + x) $\\vdots$ 15 <br\/> A nh\u1ecf nh\u1ea5t chia h\u1ebft cho 15 khi x = 7<br\/> <span class='basic_pink'> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 7 <\/span>"}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:41"}]}