Casting off to shape top of sleeve
by Niicky Martin
(Birmingham in UK)
The knitting pattern I’m following says
When the sleeve measures 20 cm , cast off 1+3+2 stitches at both sides. 2+2+11 times for the armhole.
When the sleeve measures 28 cm, cast off remaining 13 stitches together and bind off.
At present I have 53 stitches so I need to cast off 40 stitches to leave 13, but I can’t understand how to do this.
Can you help please?