心算

metal lath───钢丝网；金属板条

mental health───[心理]心理健康

mental image───感觉像；精神意象；心象

mental age───n.[心理]心理年龄；精神年龄

dental health───口腔卫生

dental plate───[无脊椎]牙板；齿板

mental imagery───心象，心理意象

But I wonder if a poor ability to do mental calculations adds to math anxiety.───可是，我认为，心算能力不强会增加数学焦虑感。

Starting this year, there will be a separate advanced class for the students who wish to continue and perform harder abacus and mental math problems as well as learn division on the abacus.───从今年开始，我们将会有一个先进班，学生们将继续学一些更难的珠算和心算问题，同时也会开始学些减法。

After the students have mastered the rules, we will proceed to more advanced abacus problems as well as mental math.───当学生们掌握了规则，我们将进行更先进的珠算问题以及心算。

Mental math made easy with multimedia tutor.───404下载心理数学与多媒体导师容易。