题目内容
| 1 |
| 4 |
| 3 |
| 5 |
| 1 |
| 4 |
| 2 |
| 5 |
分析:先算小括号里的
-
,再算括号外面的除和乘.
| 3 |
| 5 |
| 1 |
| 4 |
解答:解:
÷(
-
)×
,
=
÷
×
,
=
×
×
,
=
.
| 1 |
| 4 |
| 3 |
| 5 |
| 1 |
| 4 |
| 2 |
| 5 |
=
| 1 |
| 4 |
| 7 |
| 20 |
| 2 |
| 5 |
=
| 1 |
| 4 |
| 20 |
| 7 |
| 2 |
| 5 |
=
| 2 |
| 7 |
点评:此题考查分数的四则混合运算按四则运算的顺序计算.
练习册系列答案
相关题目