tính nhẩm
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Meaning
2 senses
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Verb
To perform mathematical calculations in one's head without using paper or tools for assistance.
vi Cậu bé có khả năng tính nhẩm rất nhanh.
en The boy has the ability to do mental math very quickly.
Noun
The practice of solving mathematical problems entirely within one's mind without external aid.
vi Việc luyện tập tính nhẩm giúp trí não nhạy bén hơn.
en Practicing mental arithmetic helps the mind stay sharper.