口算下面各题.1.5÷0.5= 5.02÷0.01= 1.25÷0.125=0.02÷0.4= 5.1÷1.7= 0.66÷0.3=49÷0.07= 12.1÷0.11=
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= .
利用学过的数学规律,简便计算下列各题 (1)82×36+64×82 (2)125×88.
用简便方法计算:36×(÷(÷.