The answer is quite simple: Grades are so imprecise that they are almost meaningless. (Marzano 2001) Since the State of Illinois and Evanston/Skokie 65 have implemented new learning standards and new curricula in many subjects, District 65 has not updated grading, assessing, and reporting that mirror updated practices in classrooms
The language used to just state 60/40, period
So if you have a valuable card and someone tries to sell you a fake one, it's crucial to tell the difference
Tribute this card and at least 1 other monster so the total original Levels Tributed equal or exceed the Level of that "Subterror" monster in the Graveyard, and if you do, Special Summon that monster in face-up or face-down Defense Position
Retrieved November 27, 2018
In general, it means being above reproach, never having to say youre sorry, and not having to take responsibility for your actions