数学天才进1000+999-998-997+996+…+104+103-102-101,=(1000+999-998-997)+(996+995-994-993)+…+(104+103-102-101),=4×225,
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![数学天才进1000+999-998-997+996+…+104+103-102-101,=(1000+999-998-997)+(996+995-994-993)+…+(104+103-102-101),=4×225,](/uploads/image/z/378827-35-7.jpg?t=%E6%95%B0%E5%AD%A6%E5%A4%A9%E6%89%8D%E8%BF%9B1000%2B999-998-997%2B996%2B%E2%80%A6%2B104%2B103-102-101%EF%BC%8C%3D%EF%BC%881000%2B999-998-997%EF%BC%89%2B%EF%BC%88996%2B995-994-993%EF%BC%89%2B%E2%80%A6%2B%EF%BC%88104%2B103-102-101%EF%BC%89%EF%BC%8C%3D4%C3%97225%EF%BC%8C)
数学天才进1000+999-998-997+996+…+104+103-102-101,=(1000+999-998-997)+(996+995-994-993)+…+(104+103-102-101),=4×225,
数学天才进
1000+999-998-997+996+…+104+103-102-101,
=(1000+999-998-997)+(996+995-994-993)+…+(104+103-102-101),
=4×225,
数学天才进1000+999-998-997+996+…+104+103-102-101,=(1000+999-998-997)+(996+995-994-993)+…+(104+103-102-101),=4×225,
(1000-100)/4=225
因为从一千到一百零一是900个数,所以用900\4=225