| 怎样简便就怎样计算. 49×102-2×49 | 87×4+885÷59 |
| 15.6-2.9+46.7 | 99×76 |
| 462-4004÷52+23 | 25×64×125 |
| 580-(20×25-500) | 40.37-(14.95+10.37) |
竖式计算
| ①306×25= | ②116×28= | ③952÷28= | ④650÷25= |
| 怎样简便就怎样计算. 49×102-2×49 | 87×4+885÷59 |
| 15.6-2.9+46.7 | 99×76 |
| 462-4004÷52+23 | 25×64×125 |
| 580-(20×25-500) | 40.37-(14.95+10.37) |
| ①306×25= | ②116×28= | ③952÷28= | ④650÷25= |