计算．[14-14÷（4.9-3.4）]×4136×34+0.75×289×[78+（14-0.25）]23÷58+13÷58．-六年级数学
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=
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（2）6×
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=6×
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=（6+2）×
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=8×
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=6；
（3）
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=
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=
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（4）
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