🟨 Yellow — Easiest
BASIC GEOMETRIC CALCULATIONS
AREA, LENGTH, PERIMETER, VOLUME
🟩 Green
BLACK-AND-WHITE THINGS
CROSSWORD, DOMINO, ORCA, OREO
🟦 Blue
LAS VEGAS CASINO HOTELS
ARIA, ENCORE, EXCALIBUR, LUXOR
🟪 Purple — Hardest
WORDS THAT SOUND LIKE PLURAL LETTERS
ARS, AYES, EASE, OWES