Mathematics

计算, 算出

She calculated the total cost of the groceries before going to the store.

她在去商店之前计算了杂货的总成本。

计算, 估算

He made a quick calculation to estimate the total cost of the project.

他做了一个快速的计算来估算项目的总成本。

添加, 加

An extra paragraph was added to the report for additional information.

为了提供额外信息，报告中添加了一个额外段落。

相符, 合乎逻辑

The financial figures in the report don't add up; there seems to be an error.

报告中的财务数字不符；似乎有错误。

减去

If you subtract 4 from 9, you get 5.

如果你从9中减去4，你会得到5。

乘

If you have 3 apples and multiply them by 2, you'll have 6 apples in total.

如果你有3个苹果并将它们乘以2，你总共会有6个苹果。

分开, 划分

The teacher divides the class into small groups for a collaborative project.

老师将班级分成小组进行合作项目。

数

The teacher regularly counts the students at the beginning of the class.

老师在上课开始时定期清点学生人数。

平均

His average score in math class is 85%.

他在数学课上的平均成绩是85%。

相等的

The twins received equal portions of cake for their birthdays.

这对双胞胎在他们生日时收到了相等的蛋糕份额。

图, 图表

The report included several figures to make the data easier to understand.

报告中包含了几张图表，以使数据更容易理解。

数学, 数学

Can you explain this math concept to me?

你能给我解释一下这个数学概念吗？

千, 千数

The ancient manuscript was estimated to be over a thousand years old, preserving the wisdom of generations.

这本古老的手稿估计有千年以上的历史，保存了几代人的智慧。

百万

The lottery winner couldn't believe their luck as they held a million-dollar check in their hands.

彩票中奖者手中握着一张百万美元的支票，不敢相信自己的运气。

十亿, 十亿

The company reported revenues of over a billion dollars last year.

该公司去年报告的收入超过10亿美元。

减号, 负号

In the expression -10, the minus sign indicates a negative number.

在表达式-10中，减号表示一个负数。

加号

Adding two positive numbers results in a positive sum, as indicated by the plus sign.

将两个正数相加会得到一个正的和，如加号所示。

负面的, 有害的

The report highlighted the negative impact of pollution on wildlife.

报告强调了污染对野生动物的负面影响。

积极的, 支持的

Her feedback was positive, praising the team's efforts.

她的反馈是积极的，赞扬了团队的努力。

麻木的, 没有感觉的

The hiker's feet went numb from hiking in the snow for hours.

徒步旅行者的脚因在雪中行走数小时而麻木了。

行动, 操作

The operation to coordinate the charity event required meticulous planning and collaboration among various volunteers.

协调慈善活动的行动需要细致的规划和志愿者之间的协作。

符号, 标记

In mathematics, the plus sign (+) is commonly used to represent addition.

在数学中，加号（+）通常用于表示加法。

符号, 象征

In algebra, "x" is often used as a symbol to represent an unknown value in an equation.

在代数中，"x"常被用作表示方程中未知值的符号。

溶液, 混合物

Many cleaning products are solutions that mix different liquids for better effectiveness.

许多清洁产品是混合不同液体以提高效果的溶液。

总额, 金额

The sum owed on the invoice amounted to $500.

发票上欠的金额总计为500美元。

全部的, 总计的

The total cost of the renovations exceeded their initial budget, requiring them to make adjustments to their plans.

翻新的总成本超出了他们的初始预算，要求他们对计划进行调整。

百分之

She scored 95 percent on her math exam, earning top marks in the class.

她在数学考试中得了95百分，获得了班级最高分。