It is necessary to teach them some basic mathematical skills.

教他们一些基本的数学技能是必要的。

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It assesses the basic knowledge and skills for life: reading literacy, mathematical literacy, scientific literacy and problem-solving abilities.

评价的内容主要是生活所需要的基本知识和技能：阅读素养、数学素养、科学素养以及问题解决能力。

youdao

Need to use mathematical skills frequently, including basic mathematics, budget, profit/loss concept, percentage and difference adaptations, etc.

需要频繁用到数学技能，包括基本数学、预算、利润 损失概念、百分比率和差异变通等。

youdao

Education and Childcare Minister Elizabeth Truss said pupils should only use them once they were confident in basic mathematical skills.

BBC: Government bans calculators from primary maths tests