题目内容
计算:|-1| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 9 |
分析:要先计算出括号内的数,然后再进行计算.
解答:解:原式=
×(-
)÷
=-
×
×
=-
.
| 5 |
| 3 |
| 1 |
| 6 |
| 10 |
| 9 |
=-
| 5 |
| 3 |
| 1 |
| 6 |
| 9 |
| 10 |
=-
| 1 |
| 4 |
点评:要注意在运算中有括号的先算括号内的,及绝对值的非负性.
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计算:|-1| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 9 |
| 5 |
| 3 |
| 1 |
| 6 |
| 10 |
| 9 |
| 5 |
| 3 |
| 1 |
| 6 |
| 9 |
| 10 |
| 1 |
| 4 |