简便计算:2002+2000-1997+1994-1991+1988-.+14-11+8-5+2

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简便计算:2002+2000-1997+1994-1991+1988-.+14-11+8-5+2简便计算:2002+2000-1997+1994-1991+1988-.+14-11+8-5+2简便计算

简便计算:2002+2000-1997+1994-1991+1988-.+14-11+8-5+2
简便计算:2002+2000-1997+1994-1991+1988-.+14-11+8-5+2

简便计算:2002+2000-1997+1994-1991+1988-.+14-11+8-5+2
=2002+3+3+3+……+3+2(333个3)
=2002+3×333+2
=2002+999+2
=3003

2002+2000-1997+1994-1991+1988-......+14-11+8-5+2
=2002+(2000-1997)+(1994-1991)+1988-......+(14-11)+(8-5)+2
=2002+3*333+2=3003

2002+2000-1997+1994-1991+1988-......+14-11+8-5+2
=3*[(2000-8)/6+1]+2002+2
=999+2004
=3003

2002+2000-1997+1994-1991+1988-......+14-11+8-5+2
=2002+3+3+...+3+2
共665个3
=2002+1995+2
=3999

2002+(2000-1997)+(1994-1991)...................+(8-5)+2=2002+{(2000-8)/(2000-1994)+1}*3+2=2002+2+333*3=3003