暗算
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Noun meaning performing calculations in one's head without using tools like paper or calculators. Common in education and daily life, e.g., 『暗算が得意です』 (anzan ga tokui desu, 'I am good at mental arithmetic').
Theme
At a math study group, User and their classmate Sakura practice mental arithmetic techniques to improve their calculation speed.
暗算
あんざん
mental arithmetic
Culture & SocietySchool & Education
Memory Hook
To remember 『暗算』 (anzan, 'mental arithmetic'), think of doing math 'in the dark' (暗 an) without a calculator — you 'calculate' (算 san) in your head! 'An-zan' → mental math!
Cultural Note
In Japan, 『暗算』 (anzan, 'mental arithmetic') is often taught from a young age, with schools and extracurricular programs like 『そろばん』 (soroban, 'abacus') competitions to improve calculation skills. It's valued for developing quick thinking and numerical fluency.
Forms
Base: 暗算Noun meaning performing calculations in one's head without using tools like paper or calculators. Common in education and daily life, e.g., 『暗算が得意です』 (anzan ga tokui desu, 'I am good at mental arithmetic').