I don't have my pattern with me, but all those numbers in the parenthesis refer to the number of units you're making, depending on what size your quilt is. Left to right they go from crib to king size, so if you're making the smallest quilt always look at the number on the far left. If you're making a king, always refer to the number at the far right. I think your next step says to sew X number of 6.5 strips to 3.5 strips in random combinations. You won't be using all of your 6.5 strips in this step. Only sew the number indicated in the parenthesis for your size. Then when you get those strip combos made, you will be sub-cutting them according to the diagram. Hope this helps.