round off

简明释义

按四舍五入去尾

英英释义

例句

1.To make the total easier to understand, we can round off the number to the nearest hundred.

为了使总数更易于理解，我们可以四舍五入到最接近的百位。

2.When calculating the budget, it's helpful to round off the expenses.

在计算预算时，四舍五入开支是很有帮助的。

3.In math class, we learned how to round off decimal numbers.

在数学课上，我们学习了如何四舍五入小数。

4.You should round off your results to avoid confusion in your report.

你应该在报告中四舍五入你的结果，以避免混淆。

5.The final score was rounded off to 90 for simplicity.

为了简化，最终得分被四舍五入为90。

作文

In mathematics, we often encounter situations where we need to simplify numbers for easier calculations or better understanding. One common practice is to round off numbers. To round off means to adjust a number to a nearby, more convenient value, typically to make it simpler to work with. For example, if we have the number 4.7, we can round off this number to 5. This process helps in various scenarios, such as when we are estimating costs, measuring distances, or even dealing with statistical data.The concept of rounding off isn't just limited to mathematics; it also finds its place in everyday life. Consider a situation where you are at a restaurant, and your total bill comes to $47.85. When tipping, you might choose to round off the total to $48 or even $50 for convenience. This practice not only simplifies the calculation but also makes transactions smoother.In academic writing, rounding off numbers can help present data more clearly. For instance, if a study reports that 1,234 participants were involved, it may be more effective to round off that number to 1,200 or 1,300 when discussing trends or making generalizations. This allows readers to focus on the bigger picture rather than getting bogged down by exact figures.Moreover, rounding off can play a significant role in budgeting and financial planning. When creating a budget, individuals often round off their expenses to the nearest ten or hundred dollars. This helps in visualizing overall spending without getting lost in minor details. For example, if someone spends $123.45 on groceries, they might round off to $120 or $130 when planning their monthly budget. The goal is to create a manageable overview that facilitates better financial decisions.However, it's important to note that rounding off can lead to some inaccuracies, especially in scientific contexts. In research, precise measurements are crucial, and rounding off can sometimes distort the findings. Therefore, scientists must be cautious and decide when it is appropriate to round off and when to maintain precision. For example, a measurement of 3.14159 might be rounded off to 3.14 for simplicity, but in a high-precision experiment, every digit counts.In conclusion, the ability to round off numbers is a valuable skill that transcends mathematical calculations. It enhances clarity and efficiency in various aspects of life, from everyday transactions to academic writing and financial planning. While it simplifies our interactions with numbers, one must always consider the context and potential implications of rounding off. By understanding when and how to apply this technique, we can navigate numerical information more effectively and make informed decisions based on clearer insights. Ultimately, rounding off serves as a bridge between complexity and simplicity, allowing us to engage with the world of numbers in a more approachable way.

在数学中，我们常常遇到需要简化数字以便于计算或更好理解的情况。一种常见的做法是四舍五入数字。四舍五入是指将一个数字调整为一个附近的、更方便的值，通常是为了使其更易于处理。例如，如果我们有数字4.7，我们可以将其四舍五入为5。这一过程在各种场景中都有帮助，比如在估算费用、测量距离或处理统计数据时。四舍五入的概念不仅限于数学，它在日常生活中也有其位置。考虑这样一种情况，你在餐馆里，账单总额是47.85美元。当你给小费时，你可能会选择将总额四舍五入为48美元甚至50美元，以方便计算。这种做法不仅简化了计算，还使交易更加顺畅。在学术写作中，四舍五入数字可以帮助更清晰地呈现数据。例如，如果一项研究报告称参与者人数为1,234，讨论趋势或做出概括时，可能更有效地将这个数字四舍五入为1,200或1,300。这使读者能够关注更大的图景，而不是被确切的数字所困扰。此外，四舍五入在预算和财务规划中也能发挥重要作用。在制定预算时，个人通常会将支出四舍五入到最接近的十或百美元。当创建每月预算时，例如，如果某人花费了123.45美元购买食品，他们可能会将其四舍五入为120或130美元。目标是创建一个可管理的概述，以促进更好的财务决策。然而，值得注意的是，在科学背景下，四舍五入可能会导致一些不准确性。在研究中，精确的测量至关重要，而四舍五入有时会扭曲结果。因此，科学家必须谨慎决定何时适合四舍五入，何时应保持精确。例如，3.14159的测量值可能会被四舍五入为3.14以简化，但在高精度实验中，每一位数字都是重要的。总之，四舍五入数字的能力是一项超越数学计算的宝贵技能。它在生活的各个方面增强了清晰度和效率，从日常交易到学术写作和财务规划。虽然它简化了我们与数字的互动，但我们必须始终考虑上下文和四舍五入的潜在影响。通过了解何时以及如何应用这一技术，我们可以更有效地处理数字信息，并基于更清晰的见解做出明智的决策。最终，四舍五入作为复杂性与简单性之间的桥梁，使我们能够以更易接近的方式与数字世界互动。