四年级下册数学简便计算题

2024-11-11 03:37:52
推荐回答(5个)
回答1:

..................1475-(362+457)
=1457-362-457
=1475-475-362
=1000-362
=638鐧惧害鍦板浘

回答2:

题目:
0.98×101﹣0.89
4.98×0.3﹣4.88×0.3

回答3:

1475-(362+457)
=1457-362-457
=1475-475-362
=1000-362
=638

回答4:

题在哪里???????

回答5:

什么题啊??