括号0.6+2.4÷(3/8)括号除0.1=(0.6+2.4x8/3)x10=(0.6+6.4)x10=7x10=70
如图
0.6+2.4÷(3/8)÷0.1=0.6+2.4÷0.1×(8/3)=0.6+24×(8/3)=0.6+64=64.6