Arithmetic

Arithmetic (addition, subtraction, multiplication and division)

四則運算

四, 則, 運算

Arithmetic progression

等差數列

等差, 差數, 數列

等差級數

等差, 級, 數

Arithmetic progressions

等差級數

等差, 級, 數

Arithmetic sequence

等差數列

等差, 差數, 數列