小学数学题3-2/(1*2)-7/(1*2*3)-14/(1*2*3*4)-····-98/(1*2*3*···*10)=?

问题描述:

小学数学题3-2/(1*2)-7/(1*2*3)-14/(1*2*3*4)-····-98/(1*2*3*···*10)=?

等于1