粮店原来有90千克面粉，运走50千克，又运进30千克，现在粮店有多少千克面粉？7m8n2I'`;T7|/E8W(p8t
算式：提示0J,H9d8P5}(i*{9k7Z3h0W*b0J0K7m8n2I'`;T7|/E8W(p8t
答：现在粮店有9h7c3M5j.}*F/P5A*`6J+P)N千克面粉。7m8n2I'`;T7|/E8W(p8t