Calculation Training

Train the mental math you need for aptitude tests, case interviews, and everyday number sense. • Arithmetic training: addition, subtraction, multiplication, and division, from 1-digit up to 5-digit numbers • Comparison training: quickly judge which is bigger — fractions, products, sums, growth and decrease rates, and multiples • Past exam training: comparison items from real Korean data interpretation exams • Statistics: accuracy and solving-time trends, plus detailed stats by question type • Wrong answer notes for focused review Supports English and Korean.