A simple mathematical operation problem (81.3-81.38×0.9)÷0.25

A simple mathematical operation problem (81.3-81.38×0.9)÷0.25

=(81.38-81.38×0.9-0.08)*4
=(81.38*0.1-0.08)*4
=(8.138-0.08)*4
=8.058*4
=32.232