能简便的用简便方法计算.
1+0.45÷0.9-
2.5×
-0.12÷
+8.36
(
+
-
)×72
1.4+(
-0.25)÷1
45×[(1.5+2
)÷3.75-
].
1+0.45÷0.9-
| 7 |
| 8 |
2.5×
| 2 |
| 5 |
| 1 |
| 3 |
(
| 7 |
| 12 |
| 5 |
| 8 |
| 11 |
| 36 |
1.4+(
| 3 |
| 8 |
| 1 |
| 4 |
45×[(1.5+2
| 2 |
| 3 |
| 2 |
| 3 |
| 7 |
| 8 |
| 2 |
| 5 |
| 1 |
| 3 |
| 7 |
| 12 |
| 5 |
| 8 |
| 11 |
| 36 |
| 3 |
| 8 |
| 1 |
| 4 |
| 2 |
| 3 |
| 2 |
| 3 |