There will be Sixties, Seventies, Eighties, and Nineties soon, but it might take a while cuz school 51 (f): She is a conspiracy theorist who is obsessed with aliens. She can be a team of three Seventeens to paint what she's seen. 52 (f): She is a card game player. 53 (m): He likes hexadecimal because in that base, his Numberlings flip around to "35". He likes other bases, too. 54 (f): She loves stickers, because a Rubik's cube has 54 stickers on it. 55 (f): She is a football coach who encourages her team by giving them high-fives, and trains them by having them run up her step shape. Her Fibonacci necklace doubles as a whistle. 56 (f): She is an ice skater. 57 (f): She LOVES ketchup, and HATES being mistakenly called prime. 58 (m): Rather dopey and clueless, he gets confused easily. 59 (m): Very lazy, and puts everything off to the last minute. He keeps falling asleep.
(C) Numberblocks @AuryTube06 for the sprites.