竖式计算.(1)0.58×0.025(列竖式验算) (2)4.194÷1.4(商精确到百分位)
下面各题怎样简便怎样算. 11.41﹣(3.41+3.53)﹣4.47=(﹣)×45=0.125×32×2.5=.
能简算的要简算+++ ×(+) ÷(3﹣﹣) ÷[﹣(+)]
简便运算.578﹣298 3.64÷4+4.36×25% 23.5+99×23.5.
21×42+21×63﹣21×5= .
(7.88+6.77+5.66)×(9.31+10.98+10)﹣(7.88+6.77+5.66+10)×(9.31+10.98)= .