一批零件有2700个，甲已经做了540个，剩下的按4：5分给乙和丙完成，丙要做多少个零件？0d2r-q8y-?7S2U-]'C
算式：提示*w8v6}2Y.b9j*M:Y5q9o5|-P3P4P0d2r-q8y-?7S2U-]'C
答：丙要做'v.^8C'k3f0[;]4s个零件。0d2r-q8y-?7S2U-]'C