The alphabet is written here but some letters are missing. Arrange the missing letters to give a word.

ABDFGHJKNOPQTVWXYZ

What is it?

Assume you are using a basic calculator and press the numbers in the order shown, replacing each question mark with a mathematical sign.

Plus, minus, multiply and divide can each be used once only.

What is the lowest number you can possibly score?

6  ?  2   ?  3  ?  5  ?  6  =