How to say "algebra" in Japanese

• 代数だいすう
  no-adjectiveAlgebra as a school subject or branch of mathematics; a shortened form of 代数学, so it is somewhat less common as a standalone way to name the field.
  代数だいすうの苦手にがてな生徒せいとが多おおい。↗

  Many pupils are poor at algebra.
• 代数学だいすうがく
  nounAlgebra as an academic discipline or field of mathematics; the fuller name of the subject, and the natural choice when referring to it formally.

Use 代数学 for the mathematical subject of algebra; 代数 is simply its shorter form, so either is understood, but 代数学 is the fuller name of the field.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 代数だいすうalgebra
• 代数学だいすうがくalgebra