用合理的方法计算下列各题.
①125×36-3603.6÷36 ②
+
+
+
+
+
+
③45.7×19-0.9×457 ④2
+(5.4-2
)×1
÷4
.
①125×36-3603.6÷36 ②
| 1 |
| 12 |
| 1 |
| 20 |
| 1 |
| 30 |
| 1 |
| 42 |
| 1 |
| 56 |
| 1 |
| 72 |
| 1 |
| 90 |
③45.7×19-0.9×457 ④2
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 10 |
| 1 |
| 12 |
| 1 |
| 20 |
| 1 |
| 30 |
| 1 |
| 42 |
| 1 |
| 56 |
| 1 |
| 72 |
| 1 |
| 90 |
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 10 |