用竖式计算,并验算.401×34 744÷62568÷71 345×16.
8888008×125.
3.75×4.23×36﹣125×0.423×2.8.
25×2.64+12.5×0.726+0.125.
简便计算:99999×1234﹣33333×3702.
5000÷125.