题目内容
计算：25.5%÷[3-（5.55×1
-2
÷0.4）]．
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25.5%÷[3-（5.55×1
-2
÷0.4）]
=25.5%÷[3-（7.4-5.25）]
=25.5%÷[3-2.15]
=25.5%÷0.85
=0.3．
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| 3 |
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=25.5%÷[3-（7.4-5.25）]
=25.5%÷[3-2.15]
=25.5%÷0.85
=0.3．
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