round off number

简明释义

修整数

英英释义

例句

1.The teacher asked us to round off number when solving math problems.

老师要求我们在解决数学问题时四舍五入数字。

2.To make it easier to read, we can round off number in our financial statements.

为了便于阅读，我们可以在财务报表中四舍五入数字。

3.In statistics, it’s common to round off number to simplify the data presentation.

在统计学中，通常会四舍五入数字以简化数据呈现。

4.When calculating the total cost, you should round off number to the nearest dollar.

在计算总费用时，你应该将数字四舍五入到最接近的美元。

5.Please round off number to two decimal places for the report.

请将数字四舍五入到小数点后两位用于报告。

作文

In mathematics, the concept of rounding off numbers is a fundamental skill that everyone should master. To round off number means to adjust the value of a number to make it simpler and easier to work with, while still being close to the original value. This process is particularly useful in everyday situations, such as when estimating costs, measuring distances, or dealing with large datasets. For instance, if you are shopping and see an item priced at $19.99, you might round off number to $20 for simplicity. This makes it easier to calculate your total expenditure without getting bogged down by cents. Similarly, if you are running a race and your time is recorded as 12.67 seconds, you might round off number to 13 seconds to give a quick estimate of your performance. The rules for rounding off numbers are straightforward. If the digit after the one you are rounding is 5 or greater, you add one to the last digit you want to keep. If it is less than 5, you leave the last digit unchanged. For example, rounding 3.76 to the nearest whole number would result in 4, while rounding 3.24 would yield 3. This simple technique helps in making calculations more manageable and understandable. In academic settings, especially in science and statistics, rounding off numbers is crucial. When presenting data, researchers often need to simplify their findings to highlight key trends without overwhelming their audience with excessive detail. For example, if a study shows that the average height of a group of people is 175.4 cm, a researcher might round off number to 175 cm or even 180 cm, depending on the context of the discussion. This allows for clearer communication of results while maintaining the integrity of the data. However, it is essential to be cautious when rounding off numbers. Overly simplifying data can lead to misinterpretations or inaccuracies. For example, if financial reports are consistently rounded off numbers without proper context, stakeholders may misunderstand the company's performance. Therefore, it is vital to strike a balance between simplicity and accuracy. Moreover, in fields like finance, engineering, and computer science, precise calculations are often required, and rounding off numbers can introduce errors if not handled correctly. In these cases, professionals might use different methods of rounding, such as rounding up (ceiling) or rounding down (floor), depending on the requirements of the task at hand. In conclusion, the ability to round off number effectively is an essential skill in both academic and everyday contexts. It facilitates easier calculations, clearer communication, and better decision-making. While it is a simple concept, understanding when and how to apply it can significantly impact various aspects of life, from budgeting to scientific research. As we continue to encounter numbers in our daily lives, mastering the art of rounding off numbers will undoubtedly serve us well.

在数学中，四舍五入的概念是一项每个人都应该掌握的基本技能。round off number 的意思是调整一个数字的值，使其更简单、更易于处理，同时仍然接近原始值。这个过程在日常生活中尤为有用，例如在估算成本、测量距离或处理大型数据集时。例如，如果你在购物时看到一件商品的价格为19.99美元，你可能会为了简便而将其round off number 为20美元。这使得计算你的总支出变得更容易，而不必纠结于美分。同样，如果你在比赛中记录到的时间为12.67秒，你可能会将其round off number 为13秒，以快速估算你的表现。四舍五入数字的规则很简单。如果你要四舍五入的数字后面那位数字是5或更大，你就给你想保留的最后一位数字加一。如果它小于5，你就保持最后一位数字不变。例如，将3.76四舍五入到最接近的整数将得到4，而将3.24四舍五入则会得到3。这种简单的技巧有助于使计算更易于管理和理解。在学术环境中，尤其是在科学和统计学中，rounding off numbers 是至关重要的。当呈现数据时，研究人员通常需要简化他们的发现，以突出关键趋势，而不至于用过多的细节压倒观众。例如，如果一项研究显示一组人的平均身高为175.4厘米，研究人员可能会根据讨论的上下文将其round off number 为175厘米或甚至180厘米。这使得结果的清晰沟通成为可能，同时保持数据的完整性。然而，在rounding off numbers 时必须谨慎。过于简化数据可能导致误解或不准确。例如，如果财务报告在没有适当上下文的情况下持续rounded off numbers，利益相关者可能会误解公司的表现。因此，找到简洁与准确之间的平衡至关重要。此外，在金融、工程和计算机科学等领域，通常需要精确的计算，而rounding off numbers 如果处理不当可能会引入错误。在这些情况下，专业人士可能会根据任务的要求使用不同的四舍五入方法，例如向上取整（天花板）或向下取整（地板）。总之，有效地round off number 是在学术和日常环境中一项必不可少的技能。它促进了更简单的计算、更清晰的沟通和更好的决策。虽然这是一个简单的概念，但理解何时以及如何应用它可以显著影响生活的各个方面，从预算到科学研究。随着我们在日常生活中不断遇到数字，掌握rounding off numbers 的艺术无疑会对我们大有裨益。