Question

39×6+39×54求过程求答案

Answer 1

Answer 2

追问

（20+4）×25

追答

Answer 3

39×6+39×54
=39×（6+54）
=39×60
=2340

Answer 4

原式=39*（6+54）
=39*60
=2340

Answer 5

＝（6+54）*（40-1）＝60*40-60＝2340