Translation guide
The branch of mathematics dealing with basic operations on numbers.
Referring to arithmetic as a subject or field of study.
The standard term for elementary school arithmetic. Used for basic calculations taught to children.
小学生の時、算数が得意でした。
I was good at arithmetic in elementary school.
A more formal or old-fashioned term for arithmetic, sometimes used in historical or technical contexts.
彼は算術の基礎を教えている。
He teaches the basics of arithmetic.
Referring to the act of performing arithmetic operations like addition, subtraction, multiplication, division.
The most common word for 'calculation' or 'computation', covering arithmetic operations in daily life.
この計算は簡単です。
This arithmetic is easy.
暗算で計算できますか？
Can you do the arithmetic in your head?
Can also refer to the actual arithmetic operations, especially in the context of elementary education.
Referring to one's ability to do arithmetic.
Literally 'calculation ability', used to describe arithmetic skills.
彼は計算力が高い。
He has good arithmetic skills.
Specifically arithmetic ability, often used for children.
算数の力をつけるには練習が必要です。
Practice is necessary to improve your arithmetic.
算数 (さんすう) refers to elementary school arithmetic, while 数学 (すうがく) refers to mathematics in general, including higher-level math like algebra and geometry. Use 算数 for basic arithmetic taught to children, and 数学 for secondary school math or the academic field.
When talking about doing arithmetic in daily life (e.g., splitting a bill, calculating a tip), 計算 (けいさん) is the most natural choice. 算数 can sound childish or too specific to schoolwork.
この算数の問題を解いてください。
Please solve this arithmetic problem.