(desmos graphing)
Typing Practice:
(typing.com) (TypingClub) (Nitro Type) (typing.zen)
Math Practice:
(Fractions) (Multiplication 4 Player) (Multiplication 8 Player) (Make a Number) (Animated Math Models) (Fact Monster) (MobyMax Portal)
Puzzles:
(Sims) (Timmy) (VAPA Practice) (Sims2)