能简算的要简算①8-（35+4÷23）②（45-56×310）÷1112③58÷[（13-18）÷124]④12+920÷310-58⑤（1-47）÷[（0.1+1.1）÷0.2]⑥56×1211+4÷27．-数学
=8-（
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=8-
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=8-6-
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=1
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②（
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=（
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③
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