..................1475-(362+457)=1457-362-457=1475-475-362=1000-362=638鐧惧害鍦板浘
题目:0.98×101﹣0.89 4.98×0.3﹣4.88×0.3
1475-(362+457)=1457-362-457=1475-475-362=1000-362=638
题在哪里???????
什么题啊??