简便计算题521654/8.796.54*87.9/5.

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答案和解析

521*654/8.79*6.54*87.9/5.21
=(521/5.21)(654/(6.54)(87.9/8.79)
=100*100*10
=100000

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简便计算题521*654/8.79*6.54*87.9/5.