I don't have time to hold grudges. Like I said Math is not my specialty I am well aware of that, but it is clear to see that it is yours. You are one of the lucky ones. My talents lay elsewhere and that is okay. It takes all kinds to make things happen.
I only ask that you remember it is very hard for some to reach out and ask for help. All of my life I have been having people say to me "Don't you get it? It is right there a+b=z blah blah blah." When this happens the person that doesn't get it will often say they do so they do not look stupid. As you can see I got over that phobia long ago, if I don't get it I am not afraid to say hold up. But, there are many school age people out there, my son included that are just starting to go through this now. Be patient. Think of it like cooking. You may say add two eggs to some and they get it, others you may have to say go to the fridge, take out two eggs, crack them etc....