- 0.25×19+0.75×27.
- 1.25×67.875+125×6.7875+1250×0.053375.
- (1+711)+(2+711×2)+(3+711×3)+…+(10+711×10)=______.
- 计算:(0.•2+0.3•4•5)×0.•6×0.7•8•9×495562=______.
- 计算:9÷13+13÷9+11÷13+14÷9+6÷13=______.
- 算式10-10.5÷[5.2×14.6-(9.2×5.2+5.4×3.7-4.6×1.5)]得值为______.
- 计算下列个题:(1)7.25+3.52+2.75+5.48(2)125×25×0.8×4(3)24700-5278÷26×108(4)99999×77778+33333×66666.
- 计算:2012×0.318+201.2×8.49-20.12×6.7=______.
- 1996÷{1996+[1996-(138×8-8)]+(138×8-8)}=______.
- 2011.2012×2011.2012-2012.2012×2010.2012=______.
- 1×1-2×2+3×3-4×4+5×5-6×6+…-100×100+101×101.
- 1993×19941994+1994×19931993.
- 12345678912-1234567890×12345678921+2+3+4+…+99+100+99+…+4+3+2+1=______.
- 计算:(1)3+5+7+9+…+73+75=______;(2)8888×1111+4444×7778=______.
- 9.63-7.52-2.49+0.432000-1998+1996-1994+…-6+4-212×(0.875×12.4+1+4.4×78)×43-14[1-(112+12+110)×212]÷1125.