简便计算65+25*13

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简便计算65+25*13

简便计算65+25*13
简便计算65+25*13

简便计算65+25*13
65+25*13
=13*5+25*13
=13*(5+25)
=13*30
=390
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65+25*13=5*13+25*13=(25+5)*13=30*13=390

 

 

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=5*13+25*13
=(5+25)*13
=30*13
=390

65+25*13
=13*(5+25)
=13*30
=390