數學題!唔識呀!
1+2+3+4+5+6+7+8+9+10+11+12+13+14..........................100
教我!!!
1加到100點做??
回答 (7)
1+2+3+4+5+6+7+8+9+10+11+12+13+14..........................100
=5050
參考: me
(1+99)+(2+98)+(3+97).....
=4900+50(中間的)+100(最後的)
=5050
the answer is 1+2+3+4+5+6+7+8+9+10+11+12+13+14..........................100
=5050
(1+100)成100除2=5050
參考: me
1+2+3+4+5+6+7+8+9+10+11+12+13+14..........................100
=(1+100)*100/2
=5050
收錄日期: 2021-04-23 21:29:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070801000051KK04201
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