I'm glad I could help. I've come across lots of tips here and I'm trying to implement at least some of them. I've got to get some row counter things to keep track of pattern rows (I tried linking stitch markers but that didn't work very well) and I've now got a laptop computer so some patterns I look at on the screen and can highlight the part I'm working on. Welcome back to knitting. That's a cute sweater, looks like fun.
I should never overestimate my basic arithmetic skills.