{"common":{"save":0,"post_id":"9101","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5049","post_id":"9101","mon_id":"1159414","chapter_id":"1159500","question":"<p>78 569 = 70 000 + <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> + 500 + 60 + 9<\/p>","options":"","correct":["[\"8000\"]"],"level":"1","hint":"","answer":"<p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n là <span style=\"color:#16a085;\"><strong>8000.<\/strong><\/span><\/p><p>78 569 = 70 000 + <span style=\"color:#16a085;\"><strong>8000<\/strong><\/span> + 500 + 60 + 9.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2025-04-30 09:45:46"},{"id":"5051","post_id":"9101","mon_id":"1159414","chapter_id":"1159500","question":"<p>Làm tròn s\u1ed1 <strong>125 689 378<\/strong> \u0111\u1ebfn hàng nghìn ta \u0111\u01b0\u1ee3c s\u1ed1<\/p>","options":["<strong>A.<\/strong> 125 689","<strong>B.<\/strong> 125 689 000","<strong>C.<\/strong> 125 690 000","<strong>D.<\/strong> 125 690"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> 125 689 000.<\/span><\/p><p>Vì ch\u1eef s\u1ed1 hàng tr\u0103m là 3 < 5 nên ta làm tròn xu\u1ed1ng.<\/p><p>V\u1eady ta \u0111\u01b0\u1ee3c s\u1ed1 125 689 000.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-04-30 09:49:06","option_type":"txt","len":1},{"id":"5053","post_id":"9101","mon_id":"1159414","chapter_id":"1159500","question":"<p>S\u1ed1 "<strong>N\u0103m tr\u0103m hai m\u01b0\u01a1i m\u1ed1t tri\u1ec7u ba tr\u0103m n\u0103m m\u01b0\u01a1i tám nghìn m\u1ed9t tr\u0103m hai m\u01b0\u01a1i sáu<\/strong>" \u0111\u01b0\u1ee3c vi\u1ebft là<\/p>","options":["<strong>A.<\/strong> 521 358 126","<strong>B.<\/strong> 512 358 126","<strong>C.<\/strong> 521 385 126","<strong>D.<\/strong> 521 538 126"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 521 358 126.<\/span><\/p><p>S\u1ed1 "<strong>N\u0103m tr\u0103m hai m\u01b0\u01a1i m\u1ed1t tri\u1ec7u ba tr\u0103m n\u0103m m\u01b0\u01a1i tám nghìn m\u1ed9t tr\u0103m hai m\u01b0\u01a1i sáu<\/strong>" \u0111\u01b0\u1ee3c vi\u1ebft là <span style=\"color:#16a085;\"><strong>521 358 126<\/strong><\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-04-30 09:52:24","option_type":"txt","len":1}]}