直接写得数0.36+0.4= 0.5÷0.25= 0.23= 4×÷4×=+= (﹣)×12= ÷0.18= 4.8﹣1.3﹣2.7=
神思妙算对又巧. ①85.87﹣(5.87+2.9)②(+)×13×29.
简便计算 27.2﹣4.42﹣2.58 38.3+45.5﹣8.399×37+3798×45.
0.25×12.5×32﹣8.88×1.25.
计算:0.178×72.6+1.78×2.74= .
计算:6.25×20.16﹣l8.75×3.12+12.5×2.6= .