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{"common":{"save":0,"post_id":"7651","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1478","post_id":"7651","mon_id":"1159414","chapter_id":"1159448","question":"Sân v\u1eadn \u0111\u1ed9ng M\u1ef9 \u0110ình có di\u1ec7n tích kho\u1ea3ng 17,5 ha. Nh\u01b0 v\u1eady di\u1ec7n tích sân v\u1eadn \u0111\u1ed9ng M\u1ef9 \u0110ình tính theo là: <\/p>","options":["A.<\/strong> 175 000 m²","B.<\/strong> 17 500 m²","C.<\/strong> 1750 m²","D.<\/strong> 1 750 000 m²"],"correct":"1","level":"3","hint":"","answer":"Ch\u1ecdn A.<\/strong> 175 000 m².<\/span><\/p>17,5 ha = 175 000 m².<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-15 10:24:05","option_type":"txt","len":2},{"id":"1480","post_id":"7651","mon_id":"1159414","chapter_id":"1159448","question":"K\u1ebft qu\u1ea3 c\u1ee7a phép tính 120 ha + 47 km² là:<\/p>","options":["A.<\/strong> 4820 ha","B.<\/strong> 4620 ha","C.<\/strong> 4720 ha","D.<\/strong> 4810 ha"],"correct":"1","level":"3","hint":"","answer":"Ch\u1ecdn A.<\/strong> 4820 ha.<\/span><\/p>120 ha + 47 km² = 120 ha + 4700 ha = 4820 ha.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-15 10:27:57","option_type":"txt","len":0},{"id":"1481","post_id":"7651","mon_id":"1159414","chapter_id":"1159448","question":"K\u1ebft qu\u1ea3 c\u1ee7a phép tính 24 ha + 750 m² là:<\/p>","options":["A.<\/strong> 24,75 ha","B.<\/strong> 24,705 ha","C.<\/strong> 24,075 ha","D.<\/strong> 24,750 ha"],"correct":"3","level":"3","hint":"1 ha = 10 000 m²<\/p>","answer":"Ch\u1ecdn C.<\/strong> 24,075 ha.<\/span><\/p>24 ha + 750 m² = 24 ha + 0,075 ha = 24,075 ha.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-15 10:32:00","option_type":"txt","len":1}]}