题目内容
[
-(
-0.25)]×
.
| 3 |
| 4 |
| 7 |
| 16 |
| 8 |
| 9 |
分析:按照先算小括号里面的,再算中括号里面的,最后算括号外面的顺序解答.
解答:解:[
-(
-0.25)]×
,
=[
-
]×
,
=
×
,
=
.
| 3 |
| 4 |
| 7 |
| 16 |
| 8 |
| 9 |
=[
| 3 |
| 4 |
| 3 |
| 16 |
| 8 |
| 9 |
=
| 9 |
| 16 |
| 8 |
| 9 |
=
| 1 |
| 2 |
点评:本题主要考查学生依据四则运算顺序正确进行计算的能力.
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