negative number

简明释义

负数

英英释义

例句

1.The stock market report showed a negative number for the company's earnings last quarter.

股票市场报告显示，该公司上个季度的收益为负数。

2.During the experiment, we recorded a negative number for the pressure change.

在实验中，我们记录了压力变化的负数。

3.When calculating the balance, I found a negative number indicating that I owe money.

在计算余额时，我发现了一个负数，这表明我欠钱。

4.The temperature dropped below zero, resulting in a negative number for the first time this winter.

气温降到零度以下，这个冬天第一次出现了负数。

5.In mathematics, a negative number is a number less than zero.

在数学中，负数是小于零的数字。

作文

In mathematics, the concept of a negative number is fundamental and plays a crucial role in various fields such as algebra, calculus, and even in real-life applications. A negative number is defined as a value that is less than zero. It is represented with a minus sign (-) in front of it. For example, -5 is a negative number, while 5 is a positive number. Understanding negative numbers is essential for students as it lays the foundation for more complex mathematical concepts.One of the most important aspects of negative numbers is their use in representing quantities that are below a certain baseline. For instance, when dealing with temperatures, a temperature of -10 degrees Celsius indicates that it is ten degrees below freezing point. Similarly, in financial contexts, a negative number can represent debt or loss. If an individual has a balance of -$200 in their bank account, it signifies that they owe $200 to the bank, highlighting the practical implications of negative numbers in everyday life.Moreover, negative numbers are vital in the field of science. They are often used to indicate direction. For example, in physics, when discussing velocity, a negative number can signify movement in the opposite direction. This usage helps in understanding motion and forces in a more comprehensive way. Thus, negative numbers not only have theoretical importance but also practical applications that affect our daily lives.In algebra, negative numbers are used in various equations and functions. For example, the equation y = -x represents a linear function where the slope is negative. This means that as the value of x increases, the value of y decreases, demonstrating the relationship between negative numbers and graphing. Learning how to manipulate negative numbers in equations is crucial for students as they progress in their studies.Understanding negative numbers also helps in the development of critical thinking skills. When solving problems involving negative numbers, students learn to analyze situations from different perspectives. For example, if a student is asked to find the sum of -3 and 7, they must understand that they are essentially finding the difference between these two numbers, which results in a positive number (4). This kind of reasoning enhances their problem-solving abilities and prepares them for more advanced mathematical challenges.In conclusion, the significance of negative numbers extends far beyond the classroom. They are integral to various aspects of life, from finance to science and everyday situations. By grasping the concept of negative numbers, students not only improve their mathematical skills but also gain valuable insights into the world around them. As we continue to encounter negative numbers in different contexts, it is crucial to embrace their importance and understand their applications thoroughly. Through practice and application, we can master the concept of negative numbers and use them effectively in our academic and personal lives.

在数学中，负数的概念是基础，并在代数、微积分以及实际应用等多个领域中发挥着至关重要的作用。负数被定义为小于零的值。它以一个负号（-）表示。例如，-5 是一个负数，而5是一个正数。理解负数对学生来说至关重要，因为它为更复杂的数学概念打下了基础。负数最重要的方面之一是它们用于表示低于某个基准的数量。例如，在处理温度时，-10摄氏度表示低于冰点十度。同样，在财务方面，负数可以代表债务或损失。如果一个人的银行账户余额为-$200，这意味着他们欠银行200美元，突显了负数在日常生活中的实际意义。此外，负数在科学领域也至关重要。它们通常用于表示方向。例如，在物理学中，当讨论速度时，负数可以表示朝相反方向的运动。这种用法有助于更全面地理解运动和力。因此，负数不仅具有理论重要性，还有影响我们日常生活的实际应用。在代数中，负数用于各种方程和函数。例如，y = -x 的方程表示一个线性函数，其中斜率为负。这意味着当x的值增加时，y的值会减少，展示了负数与图形之间的关系。学习如何在方程中操作负数对学生来说至关重要，因为他们在学习中不断进步。理解负数还有助于培养批判性思维能力。在解决涉及负数的问题时，学生学会从不同的角度分析情况。例如，如果要求学生计算-3和7的和，他们必须理解实际上是在找这两个数之间的差，这结果是一个正数（4）。这种推理能力增强了他们的问题解决能力，为他们应对更高级的数学挑战做好了准备。总之，负数的重要性远远超出了课堂。它们是生活各个方面的组成部分，从财务到科学以及日常情况。通过掌握负数的概念，学生不仅提高了数学技能，还获得了对周围世界的宝贵见解。随着我们在不同的上下文中继续遇到负数，理解它们的重要性和应用彻底是至关重要的。通过实践和应用，我们可以掌握负数的概念，并在学术和个人生活中有效利用它们。