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計算:(2+4+6+…+100)-(1+3+5+…+99)
答案與解析:
(2+4+6+…+100)-(1+3+5+…+99)
= (2-1)+(4-3)+(6-5)+……+(100-9)
=50
計算:(2+4+6+…+100)-(1+3+5+…+99)
答案與解析:
(2+4+6+…+100)-(1+3+5+…+99)
= (2-1)+(4-3)+(6-5)+……+(100-9)
=50