题目内容
计算:
+[1-(
+
)]×
.
| 11 |
| 12 |
| 1 |
| 6 |
| 3 |
| 8 |
| 1 |
| 4 |
分析:先计算小括号里面的加法,再算中括号里面的减法,再算乘法,最后算括号外面的加法.
解答:解:
+[1-(
+
)]×
,
=
+(1-
)×
,
=
+
×
,
=
+
,
=
.
| 11 |
| 12 |
| 1 |
| 6 |
| 3 |
| 8 |
| 1 |
| 4 |
=
| 11 |
| 12 |
| 13 |
| 24 |
| 1 |
| 4 |
=
| 11 |
| 12 |
| 11 |
| 24 |
| 1 |
| 4 |
=
| 11 |
| 12 |
| 11 |
| 96 |
=
| 33 |
| 32 |
点评:有括号的四则运算,先算括号里面的,然后再根据先算乘除,后算加减的运算顺序进行计算即可.
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