Question

23×0.66+54×0.33怎么简便运算？

Answer 1

23×0.66+54×0.33简便计算？
解:原式=23×0.33×2+54×0.33
=0.33×(23×2+54)
=0.33×(46+54)
=0.33×100
=33

Answer 2

23*0.66+54*0.33=0.33*(23*2+54)=0.33*(46+54)=0.33*100=33
简便计算的方法就是提取公因式或调换顺序，然后凑成整数，就简便计算了。