0.65乘以6.4减6.5乘以0.54加65乘以9％

0.65乘以6.4减6.5乘以0.54加65乘以9％ 0.65乘以6.4减6.5乘以0.54加65乘以9％ 2000乘以1999减1999乘以1998加1998乘以1997减1997乘以1996,简算 20乘以20减19乘以19加18乘以18减17乘以17加...加2乘以2减1乘以1的结果 0.21乘以6.4加0.42乘以1.8简便计算 怎么简算13.5乘以10.1加6.5乘以9.9 134乘以56减134加45乘以134 99乘以98减98乘以97加96乘以95减95乘以94加.加6乘以5减5乘以4加3乘以2减2乘以1等于多少 57乘以44加44乘以44减44巧算急 用简便方法计算 165乘以122加24乘以122加2乘以122减191乘以122用简便方法计算 165乘以122加24乘以122加2乘以122减191乘以22 124乘以38加65乘以124加76乘以110减76乘以7简便计算 3乘以a乘以b的平方加6乘以a的平方乘以b减3乘以a乘以b的因式分解 4.83乘以0.59加0.41乘以1.59减0.324乘以5.9用简便方法怎样计算 27乘以3.4加15.4乘以34减340乘以百分之81,怎么简算. 负3.14乘以35.2加6.28乘以(负23.3)减1.57乘以36.4 7.6乘以201.3加0.43乘以2013减19乘以20.13 5.68乘以0.47加0.63乘以5.68减5.68乘以0.1 x加1乘以x加2乘以x加3乘以x加4减8等于0