简便计算6.8*3.4+15.9*3.2

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简便计算6.8*3.4+15.9*3.2简便计算6.8*3.4+15.9*3.2简便计算6.8*3.4+15.9*3.26.8*3.4+15.9*3.2=(10-3.2)*3.4+15.9*3.2=1

简便计算6.8*3.4+15.9*3.2
简便计算6.8*3.4+15.9*3.2

简便计算6.8*3.4+15.9*3.2
6.8*3.4+15.9*3.2
=(10-3.2)*3.4+15.9*3.2
=10*3.4+(15.9-3.4)*3.2
=34+12.5*3.2
=74