| 简便算法。 | ||||
|
| (1)2.37+5.91+0.63 =3+5.91 =8.91 | (2)18-1.52-0.48 =18-2 =16 |
| (3)(8+0.4)×0.25 =2+0.1 =2.1 | (4)4.7×10.1 =47+0.47 =47.47 |
编辑:chaxungu时间:2026-04-27 13:34:01分类:小学数学题库
| 简便算法。 | ||||
|
| (1)2.37+5.91+0.63 =3+5.91 =8.91 | (2)18-1.52-0.48 =18-2 =16 |
| (3)(8+0.4)×0.25 =2+0.1 =2.1 | (4)4.7×10.1 =47+0.47 =47.47 |