括号3.2×0点15 1点八括号除以0.6怎样简便括号3.2×0点15 1点八括号除以0.6=（3.2*0.15+1.8）÷0.6=（0.48+1.8）÷0.6=0.48÷0.6+1.8÷0.6=0.8+3=3.8
