mental arithmetic ability
mental arithmetic ability
心算能力
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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It is one of the most important goals to train students 'mental arithmetic ability in primary school, so teachers attach great importance to how to improve the level of mental arithmetic teaching.
小学生心算能力的训练和培养是小学数学教学的重要任务之一，怎样提高心算教学质量，是老师非常关心的问题。
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