简便计算,7.2-0.225/0.9-0.75

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简便计算,7.2-0.225/0.9-0.75简便计算,7.2-0.225/0.9-0.75简便计算,7.2-0.225/0.9-0.757.2-0.225/0.9-0.75=7.2-225/900-

简便计算,7.2-0.225/0.9-0.75
简便计算,7.2-0.225/0.9-0.75

简便计算,7.2-0.225/0.9-0.75
7.2-0.225/0.9-0.75
=7.2-225/900-0.75
=7.2-1/4-3/4
=7.2-(1/4+3/4)
=7.2-1
=6.2