Within this area there is to be a section for the sanctuary 500 cubits square, with 50 cubits around it for open land.
KJV
Of this there shall be for the sanctuary five hundred [in length], with five hundred [in breadth], square round about; and fifty cubits round about for the suburbs thereof.
ASV
Of this there shall be for the holy place five hundred in length by five hundred in breadth, square round about; and fifty cubits for the suburbs thereof round about.