| 脱式计算。 | ||||
|
| (1)216÷[(65-47)×4] =216÷[18×4] =216÷72 =3 | (2)924÷[(32-18)×6] =924÷[14×6] =924÷84 =11 |
| (3)990÷[(15+18)×30] =990÷[33×30] =990÷990 =1 | (4)500÷[(189-89)÷20] =500÷[100÷20] =500÷5 =100 |
编辑:chaxungu时间:2026-04-27 13:23:07分类:小学数学题库
| 脱式计算。 | ||||
|
| (1)216÷[(65-47)×4] =216÷[18×4] =216÷72 =3 | (2)924÷[(32-18)×6] =924÷[14×6] =924÷84 =11 |
| (3)990÷[(15+18)×30] =990÷[33×30] =990÷990 =1 | (4)500÷[(189-89)÷20] =500÷[100÷20] =500÷5 =100 |