Exodus 26:8-10

Young's Literal Translation

⁸ the length of the one curtain [is] thirty by the cubit, and the breadth of the one curtain four by the cubit; one measure [is] to the eleven curtains;

⁹ and thou hast joined the five curtains apart, and the six curtains apart, and hast doubled the six curtains over-against the front of the tent.

¹⁰ `And thou hast made fifty loops on the edge of the one curtain, the outermost in the joining, and fifty loops on the edge of the curtain which is joining the second;