Working memory span, performance-approach goal and performance-avoidance goal could directly predict mental arithmetic.
工作记忆广度、成绩趋近目标和成绩回避目标是心算正确率和心算时间的直接预测者。
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Practise mental arithmetic when you go out shopping.
外出购物时练习一下心算。
《柯林斯英汉双解大词典》
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I was particularly good at mental arithmetic.
我特别擅长心算。
The numeracy tests cover reading graphs and tables, as well as mental arithmetic questions including percentages and fractions.
BBC: Literacy and numeracy tests toughened for new teachers
"Mental arithmetic is a more complex and challenging task, which more than 20% of people struggle with, " the study said.
BBC: Brain stimulation promises 'long-lasting' maths boost
His use of this extra memory space meant that he could circumvent that perennial pitfall of mental arithmetic, losing one's place.
ECONOMIST: Who wants to be a genius?
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