题目内容
计算-52-[(-2)3+(1-0.8×
)÷(-2)].
| 3 |
| 4 |
-52-[(-2)3+(1-0.8×
)÷(-2)]
=-25-[-8+(1-0.6)÷(-2)]
=-25-[-8+0.4÷(-2)]
=-25-[-8-0.2]
=-25+8.2
=-16.8.
| 3 |
| 4 |
=-25-[-8+(1-0.6)÷(-2)]
=-25-[-8+0.4÷(-2)]
=-25-[-8-0.2]
=-25+8.2
=-16.8.
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