计算下面各题,能简算的要简算,并写出主要的计算过程.
①7.8-8.75+2.2-1.25
②13.2÷(9.4-5)+5.32
③1-
-
④
-(
+
)
⑤
+(
-
)
①7.8-8.75+2.2-1.25
②13.2÷(9.4-5)+5.32
③1-
| 3 |
| 7 |
| 4 |
| 7 |
④
| 13 |
| 17 |
| 5 |
| 17 |
| 1 |
| 10 |
⑤
| 1 |
| 5 |
| 5 |
| 6 |
| 13 |
| 18 |
| 3 |
| 7 |
| 4 |
| 7 |
| 13 |
| 17 |
| 5 |
| 17 |
| 1 |
| 10 |
| 1 |
| 5 |
| 5 |
| 6 |
| 13 |
| 18 |