Question

8.5*0.739十0.15*7.39 要求简便计算,怎样算?

Answer 1

8.5 X 0.739 + 0.15 X 7.39

= 0.85 X 7.39 + 7.39 X 0.15

= 7.39 X ( 0.85 + 0.15 )

= 7.39 X 1

= 7.39