35乘54+35乘28+82乘65= (要巧算)

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35乘54+35乘28+82乘65= (要巧算)
35乘54+35乘28+82乘65= (要巧算)

35乘54+35乘28+82乘65= (要巧算)
35乘54+35乘28+82乘65
=35乘(54+28)+82乘65
=35乘82+82乘65
=82乘(35+65)
=82乘100
=8200