用竖式计算.
| 72÷8= | 46÷7= | 65÷8= |
计算下面各题(要写出计算过程)
| ( | ( |
直接写得数
| 2×3.14×8= | 25%+ | ||
| (1- | 1.75-(0.75+ | 3.14×9= |
选择合理的方法计算:
| 12×( |
脱式计算,能简算的要简算.
| 0.25×[(2.8+4.4)÷1.2] | 3.7×9.16+6.3×9.16 |
| [32-(1.95-1.95)]÷1.6 | 5.7×10.1. |
| 72÷8= | 46÷7= | 65÷8= |
| ( | ( |
| 2×3.14×8= | 25%+ | ||
| (1- | 1.75-(0.75+ | 3.14×9= |
| 12×( |
| 0.25×[(2.8+4.4)÷1.2] | 3.7×9.16+6.3×9.16 |
| [32-(1.95-1.95)]÷1.6 | 5.7×10.1. |