Zoila shows moderate intellectual disability but has an exceptionally high ability in math. she can ask you what day your birthday is and tell you immediately what day of the year you were born on. individuals like zoila are considered

Savants

Explanation: Savant is the condition in which the person has a syndrome of   remarkable abilities in much access amount which is referred as the mental illness or disability.Because of the more than average capability can result in activities like rapid calculation, music making, artistic ability.

Therefore Zoila is considered as the savant because of her extreme capability in  math calculations.