It is critical to know how ASVAB scores are calculated and what they are used for.  The Armed Services Vocational Aptitude Battery (ASVAB) tests are used to identify whether a candidate is qualified to enlist in a particular branch of the U.S. Military.  The ASVAB test is also used to determine which military jobs (referred to as MOS for Military Occupational Specialties) a candidate is best suited for.  ASVAB scores can also be used by test takers to help explore which careers they may be a good fit for them – whether they go into the military or not. While no one officially passes or fails the ASVAB, each branch of the military has specific minimum scores required for enlistment.  Your scores also affect the type of military job, enlistment bonuses and salary you are eligible for.
Don’t be fooled by the appearance of the low numbers, the algorithm that computes the AFQT is very sophisticated. Just because your ASVAB score is 40 doesn’t mean that you only got 40% of the questions correct, it could simply mean that you lack strength in one area, but succeed with high praise in another. Your ASVAB score is only a means by which you are categorized for available positions; it is by no means a measure of intelligence.
El Razonamiento aritmético evalúa la capacidad de resolver problemas aritméticos básicos que se presentan en la vida cotidiana. Problemas escritos de uno y varios pasos que requieren sumar, restar, multiplicar y dividir y elegir el orden correcto de las operaciones cuando se necesita más de un paso. Los temas incluyen operaciones con números enteros, operaciones con números racionales, fracción y proporción, interés, porcentaje y medición. El razonamiento aritmético es un factor que ayuda a caracterizar la comprensión matemática, y también evalúa el pensamiento lógico.
To enlist in the United States armed forces, you must take an entrance examination called the Armed Services Vocational Aptitude Battery (ASVAB). The ASVAB test helps the military determine your qualifications for enlistment. The ASVAB first appeared in 1968. By 1976 it was required by all branches of the military. The test was completely redone in 2002.

The various armed forces adopted all of those aspects in 1976. At that point in time, the test was in its written form rather than today’s more common form (computerized test format). The written form covers all of the previously mentioned areas as well, which is why both forms are still available. All-in-all that answers the question concerning the intention of the test.