横线里面最大能填几?
| 60×________<543 | ________×32<209 | 49×________<167 | ________×65<423. |
递等式计算
| (3.2+4.06)÷6.05 | 26.8-1.2×4 | 3.5×3+3.5×70 | 4×(3.2-0.8)÷1.2. |
| 60×________<543 | ________×32<209 | 49×________<167 | ________×65<423. |
| (3.2+4.06)÷6.05 | 26.8-1.2×4 | 3.5×3+3.5×70 | 4×(3.2-0.8)÷1.2. |