(-42.75)*(-27.36)-(-72.64)*(+42.75)=?
问题描述:
(-42.75)*(-27.36)-(-72.64)*(+42.75)=?
答
-42.75(-27.36-72.64)=-42.75*(-100)=4275
(-42.75)*(-27.36)-(-72.64)*(+42.75)=?
-42.75(-27.36-72.64)=-42.75*(-100)=4275