（0.8×19.85×0.125+0.075×0.125÷0.625）×100-37.5×0.4=0.8×19.85×0.125×100+0.075×0.125÷0.625×100-37.5×0.4=8×19.85×1.25+7.5×0.125÷（5/8）-37.5×0.4=10×19.85+7.5×0.125×1.6-37.5×4×0.1=1...