321×46-92×27-67×46简便运算
问题描述:
321×46-92×27-67×46简便运算
答
46(321-2*27-67)=9200
答
321×46-92×27-67×46
=321×46-46×2×27-67×46
=321×46-46×54-67×46
=46×(321-54-67)
=46×200
=9200