3.5÷113+6.5×[12×(113−0.3)−0.15]=3.5÷113+6.5×[12×113-12×0.3-0.15]=2.625+6.5×[16-3.6-0.15]=2.625+6.5×[12.4-0.15]=2.625+6.5×12.25=2.625+79.625=82.25．故答案为：82.25．