(1)(-22/7)X(-6)-(-7)X22/7+13X(-22/7)=?
问题描述:
(1)(-22/7)X(-6)-(-7)X22/7+13X(-22/7)=?
简便运算
答
(-22/7)×(-6-7+13)=-22/7×0=0那简便运算是怎样的?jiushi简便运算多谢!稍等我还有一题不会。(-47.65)X28/11+(-37.15)X(-28/11)+10.5X(-82/11)=?-47.65)X28/11+(-37.15)X(-28/11)+10.5X(-82/11)=-28/11X(47.65-37.15+10.5)=-28/11X22=-56