7.2x25x8.5用简便方法计算

7.2x25x8.5用简便方法计算
2025-06-25 13:30:50
推荐回答(3个)
回答1:

7.2x25x8.5用简便方法计算
7.2x25x8.5
=25*8*(0.9*8.5)
=200*7.65
=1530

回答2:

7.2x25x8.5用简便方法计算

=25x8x9x8.5
=200x8.5x9
=1700x(10-1)
=17000-1700
=15300

回答3:

  7.2x25x8.5
  =1.8x(4x25)x8.5
  =18x85
  =1530