计算下面各题.(1)60+360÷30×5(2)240÷(20﹣5)+5(3)(47﹣15)×(9+12)(4)85.7﹣(15.3﹣5.8)
(7.5+7.5+7.5+7.5)×125×4.
1999+999×999.
8888008×125.
3.75×4.23×36﹣125×0.423×2.8.
25×2.64+12.5×0.726+0.125.