张师傅加工1个零件要用5分钟，加工8个零件要几分钟？*x4t9W._/t9_)Y1f0m.E/T2q'Y'D)z6`'r8h3D.s
算式：提示:P3\2i+Y:k0J'u:W(p4Q:a*F2I*x4t9W._/t9_)Y1f0m.E/T2q'Y'D)z6`'r8h3D.s
口答：加工8个零件要0k0f*u(Z0}'U分钟。*x4t9W._/t9_)Y1f0m.E/T2q'Y'D)z6`'r8h3D.s