I'm not sure if you figured it out, but it looks like k2tog is the dec they call for.
So your first row that you showed would be
K3, K2tog, K5, k2tog, yo, k5, yo, k2tog
for every slash you k2tog, for every o you yarn over, for every number you knit that number.
You may have figured that out already, if so, good luck on your shawl--its beautiful!