reading a pattern
i have been knitting for a few months now and have just started my first pattern but i dont understand it when it say to end 50sts? the full line is :
cast on 40sts.
KNIT 8 ROWS
next row (k3, inc. in next st) to end (50sts).
which i have done up to increasing the 3 stitches but what dose it mean to end (50 sts)? please help