The purpose of this book was to include everything we know about the effectiveness of teaching mathematics to children with Learning Difficulties or Mild Intellectual Disabilities. The basic object was teaching and learning arithmetic combinations, as they are a basic part of mathematical knowledge and a piece of prerequisite knowledge for the future understanding and use of mathematical concepts and skills at school and in life. The book is addressed to general or special education teachers, and special educators. Finally, it hopes to contribute to the scientific development of educators by...