- mental calculations
- устный счет, счет в уме
Большой англо-русский и русско-английский словарь. 2001.
mental calculations
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Mental calculation — comprises arithmetical calculations using only the human brain, with no help from calculators, computers, or pen and paper. People use mental calculation when computing tools are not available, when it is faster than other means of calculation… … Wikipedia
mental arithmetic — UK US noun [uncountable] calculations that you do in your mind, without writing them down Thesaurus: general words relating to mathematics and geometryhyponym to calculate or countsynonym * * * ˌmental aˈrithmetic [mental arithmetic] … Useful english dictionary
mental arithmetic — mental a rithmetic noun uncount calculations that you do in your mind, without writing them down … Usage of the words and phrases in modern English
mental arithmetic — UK / US noun [uncountable] calculations that you do in your mind, without writing them down … English dictionary
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