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Definition of mental arithmetic in English: mental arithmeticnoun mass nounArithmetical calculations performed in the mind, without writing figures down or using a calculator. Example sentencesExamples - A market trader I met, who left school unable to spell ‘orange’, could do mental arithmetic with the speed of summer lightning.
- Lawrence Lee was known in the local area to be very good at mental arithmetic and it was this love of mathematics that he passed on to his daughter.
- Kawashima's study compared the brain activity in hundreds of teenagers playing computer games and doing mental arithmetic.
- Daniel Tammet is a man with an exceptional mind: he can perform mental arithmetic faster than a pocket calculator, and learn a new language fluently, even one as tortuously complex as Icelandic, in a matter of days.
- Calling himself a mathemagician, he astonishes audiences with amazing feats of mental arithmetic.
Definition of mental arithmetic in US English: mental arithmeticnoun Arithmetical calculations performed in the mind, without writing figures down or using a calculator. Example sentencesExamples - A market trader I met, who left school unable to spell ‘orange’, could do mental arithmetic with the speed of summer lightning.
- Kawashima's study compared the brain activity in hundreds of teenagers playing computer games and doing mental arithmetic.
- Calling himself a mathemagician, he astonishes audiences with amazing feats of mental arithmetic.
- Daniel Tammet is a man with an exceptional mind: he can perform mental arithmetic faster than a pocket calculator, and learn a new language fluently, even one as tortuously complex as Icelandic, in a matter of days.
- Lawrence Lee was known in the local area to be very good at mental arithmetic and it was this love of mathematics that he passed on to his daughter.
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