I have a learning disability called dyscalculia. I wouldn't be surprised if you've never heard of it. Most people have heard of dyslexia which refers to people that can't keep words and letters straight. Dyscalculia is similar except instead of having trouble with letters it makes people have trouble with numbers and math. Dyscalculia makes it difficult to deal with simple numbers and it makes it extremely hard to do any complicated math.   According to scientists, they may have discovered the area of the brain that's links to dyscalculia. Researchers have explained that the area of the brain known as the intraparietal sulcus (or IPS) is crucial for properly processing numerical information. This part of the brain is located toward the top and back of the brain and goes across both lobes. The IPS helps determine how many items are perceived, as opposed to how much.      To explain how these two different modes of thinking are related, researchers say to think about what it's like when a…