- Faye,Student

A problem in this area impairs a person from carrying out internal sequential mental operations such as doing mathematics inside one's head. The person can be so impaired that simple counting processes break down. The person also has difficulty calculating change.
If this dysfunction is at a moderate level of severity it means that the person is unable to sufficiently hold numbers inside his head to stably learn the addition and multiplication tables. The person cannot make progress in mathematics beyond a grade 4 level. The person resorts to finger or stick counting when solving math questions.
If the problem is less severe the person may be able to eventually learn his math tables but since he/she cannot do even relatively simple operations mentally, he/she cannot carry out the more difficult aspects of dealing with fractions at a grade 4 to 6 level.
- Faye,Student