7.8×5.4+0.78+78×0.45 怎么简算?
问题描述:
7.8×5.4+0.78+78×0.45 怎么简算?
答
7.8×5.4+0.78+78×0.45 =0.78*(54+1+45)=0.78*100=78
7.8×5.4+0.78+78×0.45 怎么简算?
7.8×5.4+0.78+78×0.45 =0.78*(54+1+45)=0.78*100=78