| 单词 | mental arithmetic |
| 释义 | mental arithmetic noun[U] uk/ˌmen.təl əˈrɪθ.mə.tɪk/us/ˌmen.t̬əl əˈrɪθ.mə.t̬ɪk/calculationsthat you do inyourmind, without writing down anynumbers 心算Branches & types of mathematics
Examplesofmental arithmeticmental arithmetic One of the methods was to inhibit inner speech by asking the subjects, for example, to protrude their tongues while solvingmentalarithmetictasks. From theCambridge English Corpus Thementalarithmeticand isometric handgrip tests are clearly independent assessments of cardiovascular reactivity based on totally different regulatory mechanisms. From theCambridge English Corpus For systolic blood pressure, genetic variance was only found inmentalarithmetictesting. From theCambridge English Corpus He used such tasks asmentalarithmeticand short-term memory for strings of numbers. From theCambridge English Corpus Yourmentalarithmeticis in overdrive as you calculate that the original purchase price of £12 million now looks more like just £158,000. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 I believe that, if we banned calculators from the classroom, more kids would be able to domentalarithmeticand end up more mathematical. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 I shall not be drawn into any furthermentalarithmeticon this issue. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 Of the 6,600 casualties, almost half—doing some quickmentalarithmetic—are children under nine. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 At the outset let me make it clear that we have sought to do somementalarithmeticon how much the policy will cost. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 We all knew that we were not very good atmentalarithmetic, and it was a jolly but rather pointless occasion. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 People with skills inmentalarithmeticwill be able to multiply that figure by 200; the answer is 4 million. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 I am not very good atmentalarithmetic, but it looks to me like one inspector to 22,500 people. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 Mymentalarithmeticis pretty bad, but that is about £100 a complaint. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 For example, the use of pocket calculators make it unnecessary for children to learn the basic elements ofmentalarithmetic. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 For that, they really need the grounding in literacy, literature and mathematics, especiallymentalarithmetic, which is the beginning of all sound learning. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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