Sl1pw to RH needle and take yarn to the front between needles. *Slip the next stitch purlwise and pass the previous slipped stitch over it. Repeat from * until you have cast off 4 sts. Slip remaining st on RH needle to LH needle and turn work. With yarn at the back, cable cast on 5 sts to LH needle. Before placing the last stitch on the LH needle bring the yarn to the front between the needles, then place the stitch on the LH needle and turn the work. Slip the first stitch on LH needle knitwise and pass the last cast- on stitch over it. The buttonhole is now complete and the total stitch count has not been altered. Continue to end of row as pattern states. Sew on buttons opposite buttonholes. Weave in all loose ends.