(1) (2010/1×3)+(2010/3×5)+(2010/5×7)+.(2010/99×101)=
(1) (2010/1×3)+(2010/3×5)+(2010/5×7)+.(2010/99×101)=
(2) 555×888分之444×777-333×888=
(3) 3/2+5/4+9/8+17/16+33/32+65/64+129/128=
(4) 2009+2008*2010/2009*2010-1=
(6)(1+2/3)*(1-2/3)*(1+2/5)*(1-2/5).*(1+2/99)*(1-2/99)
(7) 1/3+3/4+2/5+5/7+7/8+9/20+10/21+11/24 +19/35