题目内容
(2011?中山市)
÷[
×(
+
)].
| 5 |
| 14 |
| 6 |
| 7 |
| 4 |
| 9 |
| 1 |
| 6 |
分析:先算小括号里面的加法,再算中括号里面的乘法,最后算除法.
解答:解:
÷[
×(
+
)]
=
÷[
×
]
=
÷
=
×
=
.
| 5 |
| 14 |
| 6 |
| 7 |
| 4 |
| 9 |
| 1 |
| 6 |
=
| 5 |
| 14 |
| 6 |
| 7 |
| 11 |
| 18 |
=
| 5 |
| 14 |
| 11 |
| 21 |
=
| 5 |
| 14 |
| 21 |
| 11 |
=
| 15 |
| 22 |
点评:计算抓住运算顺序,正确计算即可.
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