| 直接写出得数 1÷ | | 5-1 | ||
| 18 | 1.5+2.35=________ | ( |
计算,能简便的用简便方法算.
| 1650-480÷16×15 | 0.4×7.6×25×1000 |
| ( |
计算,能简算的要简算
| 65-40 | 4.75 |
直接写出得数.
| 20× | |||
| 3- | 3+ |
计算下面各题,能简便的要简便计算,并写出必要的过程.
| (3- | 9-( | (2-2× |
| 直接写出得数 1÷ | | 5-1 | ||
| 18 | 1.5+2.35=________ | ( |
| 1650-480÷16×15 | 0.4×7.6×25×1000 |
| ( |
| 65-40 | 4.75 |
| 20× | |||
| 3- | 3+ |
| (3- | 9-( | (2-2× |