45*65+45*34+45的简便计算

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45*65+45*34+45的简便计算45*65+45*34+45的简便计算45*65+45*34+45的简便计算45*65+45*34+45=45*(65+34+1)=45*100=450045*(

45*65+45*34+45的简便计算
45*65+45*34+45的简便计算

45*65+45*34+45的简便计算
45*65+45*34+45
=45*(65+34+1)
=45*100
=4500

45*(65+34+1)=45*100=4500

45×65+45×34+45
=45×(65+34+1)
=45×100
=4500