Not funny, maybe a grin but not funny! I have dyslexia and math is a pain for me especially numbers with 6,9,5,2 involved. I also have issues with Z,N,p,q,b,d, I can do the math but putting it on paper fouls me up. I actually do much of it in my head and just give answers, it ticks off the instructors. I built a deck on my house and missed the materials bill by 2 ballisters on a $1200 job. I believe the major part of our welding related math is geometry and it just makes sense to me, whereas algebra-forget it!
Check out the Sylvan advantage course it may help him,
I would be glad to help if I could, BTW I am 37 and returned to school 3 years ago.