56.5x99+5.65简便计算

虞肩彪295856.5x9.9x5.65怎样简便 -
巩种菁17211644634 ______ 后面的乘号应该是加号吧,不然无法用简便运算. 56.5x9.9+5.65 =5.65x99+5.65 =5.65x(99+1) =5.65x100 =565

虞肩彪295856.5x9.9+56.5 怎样简算 -
巩种菁17211644634 ______ 56.5x9.9+5.65 =56.5x(9.9+0.1) =565

虞肩彪295856.5乘9.9+5.65脱式计算怎么算 -
巩种菁17211644634 ______ =【9.9加1】乘5.65

虞肩彪295856.5*9.9+6.65简便计算 -
巩种菁17211644634 ______ 56.5*10-5.65+6.65

虞肩彪295856.5乘9.9加5.65简便方法怎么算 -
巩种菁17211644634 ______ 原式=56.5x9.9+56.5x0.1 =56.5x(9.9+0.1) =56.5x10 =565 或者:原式=5.65x10x9.9+5.65x1 =5.65x(10x9.9+1) =5.65x(99+1) =5.65x100 =565

虞肩彪295856.5*9.9+56.5用简便方法计算? -
巩种菁17211644634 ______ 56.5*9.9+56.5 =56.5*(10-0.1)+56.5(把9.9变成10-0.1的形式) =56.5*10-0.1*56.5+56.5(两个数的差,乘以一个数,可以拆开来算,积不变然后加56.5) =565-5.65+56.5 =565+(56.5-5.65)(利用括号,变换顺序,将同类小数相减) =565+50.85 ...

虞肩彪295856.5*9.9+56.5= -
巩种菁17211644634 ______ 56.5*(9.9+1)=56.5*10.9=615.85

虞肩彪295856.5x9.9+565的简便方法? -
巩种菁17211644634 ______ 56点5*9点九,加上565的简便算法是 56点5*9点9+565=56点5*10-5点六五,加上565,等于1300-5.65=1124.35

虞肩彪2958小数乘法的简便计算56.5x9.9+56.5 -
巩种菁17211644634 ______[答案] 56.5*9.9+56.5 =56.5*(10-0.1)+56.5 =565-5.65+56.5 =621.5-5.65 =615.85

虞肩彪295856.5*9.9+56.5的巧算 -
巩种菁17211644634 ______[答案] 56.5*9.9+56.5 =56.5*(10-0.1)+56.5 =56.5*10-0.1*56.5+56.5 =565-5.65+56.5 =565+50.85 =615.85