解:有啊!
原式=[(12.5+0.1)x4-0.1]x20+(200+1)x5
=[12.5×4+0.1×4-0.1]×20+200×5+1×5
=(50+0.3)×20+1000+5
=50×20+0.3×20+1000+5
=1000+1000+5+6
=2011
(12.6x4-0.1)x20+201x5
=12.6x4x20-0.1x20+200x5+1x5
=12.5x80+0.1x80-0.1x20+1000+5
=1000+0.1x(80-20)+1005
=2005+0.1x60
=2005+6
=2011
(12.6x4-0.1)x20+201x5
=252*4-2+201*5
=1000+8-2+1000+5
=2011
(12.6x4-0.1)x20+201x5
=12.6x4x20-0.1x20+201x5
=1008-2+1005
=2011
=(12.5*4+0.1*4-0.1)*20+201*5
=(50+0.3)*20+200*5+1*5
=1000+6+1000+5
=2011