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

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(2002+2000+1998.+4+2)-(2001+1999+1997+.+3+1)简便运算,
x)0200چz&F QC%066|ɾ/OxnMR> li;X= = %tjC P>$԰ @&0 !To_\g(As

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

(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