r/CasualMath
MathsVisitCasual maths discussion.
Maths subreddits
Mathematics, statistics, and maths help.
r/cheatatmathhomework
MathsVisitMaths homework help.
r/learnmath
MathsVisitGet help learning maths.
r/math
MathsVisitMathematics: questions and discussion.
r/mathbooks
MathsVisitMaths book recommendations.
r/matheducation
MathsVisitTeaching mathematics.
r/mathpics
MathsVisitMathematical pictures.
r/puremathematics
MathsVisitPure mathematics: proofs, theory, and discussion.
r/statistics
MathsVisitStatistics: methods, questions, and discussion.