905×99+905 = = = 简算

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905×99+905===简算905×99+905===简算905×99+905===简算原式=905*(99+1)=905*100=90500

905×99+905 = = = 简算
905×99+905 = = = 简算

905×99+905 = = = 简算
原式=905*(99+1)
=905*100
=90500