| 脱式计算。 | ||||||
|
(1)5.4×5.08+3.6×5.08+5.08 | (2)0.25×588.5×400 =0.25×400×588.5 =100×588.5 =58850 |
| (3)[9-(4.68+ 1.42)-1.9]÷0.125 =[9-6.1-1.9]÷0.125 =1÷0.125 =8 | (4)[(6.1 - 4.6)× 0.8-1] ×0.4 |
(5)![]() =4.125+0+4.125 =8.25 | (6) |
编辑:chaxungu时间:2026-04-27 13:58:43分类:小学数学题库
| 脱式计算。 | ||||||
|
(1)5.4×5.08+3.6×5.08+5.08 | (2)0.25×588.5×400 =0.25×400×588.5 =100×588.5 =58850 |
| (3)[9-(4.68+ 1.42)-1.9]÷0.125 =[9-6.1-1.9]÷0.125 =1÷0.125 =8 | (4)[(6.1 - 4.6)× 0.8-1] ×0.4 |
(5)![]() =4.125+0+4.125 =8.25 | (6) |