(65乘以68)除以(13乘以17)如何巧算
问题描述:
(65乘以68)除以(13乘以17)如何巧算
答
(65×68)÷(13×17)
=(65÷13)×(68÷17)
=5×4
=20
参考方法!
答
=(65*68)/13/17
=(65/13/17)*(68/17/13)
=5/17*4/13
=20/221
答
(65乘以68)除以(13乘以17)
=65÷13x(68÷17)
=5x4
=20
答
(13*5乘以17*4)除以(13乘以17)