- 计算2009×98+4018=______.
- (2×3×5×7×11×13×17×19)÷(38×51×65×77)=______.
- 计算:(1)10-9.8-9.6-9.4-9.2-…-0.8-0.6-0.4-0.2(2)4.23×7.12+42.3×0.398-0.432×11(3)80-9-0.9-0.09-0.009-0.0009(4)...
- 计算:8888×3333+4444×3334=______.
- 15.48×35-154.8×1.9+15.48×84=______2011×201220122012-2012×201120112011=______.
- 计算:100÷1.2×3÷56×1415=______.
- 计算:2007×2008-2006×2009.
- 计算:(1)1-3+5-7+9-11+…-1999+2001=______(2)69316.931÷69.31=______.
- 计算:1÷50+2÷50+…+98÷50+99÷50=______.
- 计算(99999+99999+99999+99999+99999)÷9=______.
- (1)5.63×6.34+0.563×36.6=______;(2)1240×3.8+124×63-12.4×10=______;(3)已知B=0.00…081992个0A=0.00…0251992个0,那...
- 计算100×99-99×98+98×97-97×96+…+4×3-3×2+2×1=______.
- (111998×8.12+53175÷23×819971998)÷41148.
- (112233-112.233)÷(224466-224.466)=______.
- 某校初一学生举行春游,若租用45座客车,则有15人没有座位;若租用同样数目的60座客车,则有一辆客车空车。已知45座客车租金2...