計算能力障礙(Mathematics disorder)

學習能力障礙的第二類是計算能力障礙(Mathematics disorder)
A.計算能力大大地低於其相應年紀,智力與教育程度:
mathematical ability, as measured by individually administered standardized tests, is substantially below that expected given the person's chronological age, measured intelligence, and age-appropriate education.
B.計算能力的低下嚴重影響其數學知識的獲得,也嚴重影響其日常生活所需的計算能力;
The disturbance in criterion A significantly interferes with academic achievement or activities of daily living that require mathematical ability.
C.如果其伴有某感覺器官的缺陷,那麽起計算能力的障礙仍然超出了感覺器官缺陷所造成的能力低下程度.
If a sensory deficit is present, the difficulties in mathematical ability are in excess of those usually associated with it.