โครงงานคณิตศาสตร์
Quiz by ตราสิน วัฒนขจรกิจ
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9 questions
Show answers
- Q12+4+6+...+10001001000300002700025050130s
- Q22+4+6+...+50006,252,50062,757,50062,525,200245254030s
- Q32+4+6+...+1900905,450903,450903,470902,45030s
- Q42+4+6+...+24961,558,7541,558,7561,558,7581,558,75230s
- Q52+4+6+...+900020,253,50020,254,75020,254,50020,259,50030s
- Q62+4+6+...+10,00025,005,00025,004,00024,005,000275,005,00030s
- Q7ผลบวก 50 พจน์แรกของอนุกรมเลขคณิต 2+4+6+...+100 เป็นเท่าใด25002,5502540452030s
- Q8ผลบวกอนุกรมเลขคณิต 2+4+6+...+678 เท่ากับเท่าไร115,260115,262115,264115,26830s
- Q9ผลบวกอนุกรมเลขคณิต 2+4+6+...+790 เท่ากับเท่าไร156,820158,420156,420156,24030s