Casio DJ-120D Plus 12 Digit Desktop Calculator Black DJ-120DPLUS-W-EP A large 12 digit display desktop calculator with Review & Auto Review, Go To Function and Check & Correct. This is ideal for those long calculations. It also has GT, is dual powered and a 00 & 000 keys. The digit comma markers in the standard format are every third digit. When the Indian format is selected the first three digits are separated and subsequently every second one.