(1)14*(-1+5/7)(2)(-100)*(3/10-1/2+1/5-0.1)(3)9又18/19*(-5)
问题描述:
(1)14*(-1+5/7)
(2)(-100)*(3/10-1/2+1/5-0.1)(3)9又18/19*(-5)
答
(1)14*(-1+5/7)
(2)(-100)*(3/10-1/2+1/5-0.1)(3)9又18/19*(-5)