(2002+2000+1998.+4+2)-(2001+1999+1997+.+3+1)简便运算,

问题描述:

(2002+2000+1998.+4+2)-(2001+1999+1997+.+3+1)简便运算,

(2002+2000+1998.+4+2)-(2001+1999+1997+.+3+1)
=(2002-2001)+(2000-1999)+(1998-1997)+……+(4-3)+(2-1)
=1+1+1+……+1+1
=1001