My sources

http://ldaamerica.org/types-of-learning-disabilities/dyscalculia/

http://www.aboutdyscalculia.org/teachers.html

http://nobullying.com/dyscalculia/

Are there real treatments?

Yes, there are many:

There is no cure or prevention for dyscalculia (yet), but like other learning disabilities, the effects can be treated. This will allow the person with dyscalculia to learn the required math functions.

The treatment for dyscalculia is to help the person to learn math using various strategies. Identifying and understanding the areas of difficulty is the first step. Then, specific strategies can be developed to aid in learning, understanding, and retention.

For substractions, we can use techniques such as saying:

• How many are left?
• Less than
• Take away
• Left over

For mulplication problems we could use phrases like:

• Times
• Each
• Per

There are many other ways of making the subjects understand, but I'm only covering these ones for the post. 

What are the teaching methods for dyscalculics?

Children with dyscalculia are slower than the regular student in the process of solving and understanding mathematics.

Some good advice for teachers would be to give the students with the disability work that is to their mathematical level. Since they will need more time to complete exercises, just give them what they need: extra time (no pressure).

Another thing to do is to give them non-verbal, but written instructions. They are already having a hard time with numbers, don't complicate it more for them by making them memorize what they have to do.

What are the signs and symptoms?

Some of the signs and symptoms are:

• Showing difficulty understanding place value concepts, quantity, positive and negative value, adding and subtracting
• Has difficulty with word problems
• Difficulty understanding fractions
• Has trouble making change and handling money
• Poor recognizing patterns when adding, subtracting, multiplying, or dividing
• Has difficulty putting language to math processes
• Difficulty understanding concepts related to time such as days, weeks, months, seasons, quarters, etc.
• Shouws difficulty organizing problems on the worksheet, keeping numbers lined up and/or following through on long division problems

What is dyscalculia?

Discalculia is a learning disability that affects the host's ability to understand or memorize numbers and generally, learn maths.

People with this  learning disability may have poor comprehension or recognitinon of math symbols, struggle with memorizing and organizing numbers, have trouble telling time, or have trouble with counting.