arithmetic expression

简明释义

算术表达式;

英英释义

例句

1.In programming, you often need to evaluate an arithmetic expression 算术表达式 to perform calculations.

在编程中，你经常需要评估一个arithmetic expression 算术表达式以进行计算。

2.When writing code, be careful with parentheses in your arithmetic expression 算术表达式 to ensure correct order of operations.

在写代码时，要小心你arithmetic expression 算术表达式中的括号，以确保正确的运算顺序。

3.In mathematics, an arithmetic expression 算术表达式 can consist of numbers and operators like +, -, *, and /.

在数学中，一个arithmetic expression 算术表达式可以由数字和运算符组成，如 +、-、* 和 /。

4.To find the area of a rectangle, you can use the arithmetic expression 算术表达式 length times width.

要找到矩形的面积，你可以使用arithmetic expression 算术表达式 长度乘以宽度。

5.The teacher asked the students to simplify the arithmetic expression 算术表达式 on the board.

老师让学生简化黑板上的arithmetic expression 算术表达式。

作文

Arithmetic is a branch of mathematics that deals with numbers and basic operations such as addition, subtraction, multiplication, and division. An important concept in arithmetic is the arithmetic expression, which is a combination of numbers and operators that represents a value. Understanding arithmetic expressions is essential for solving mathematical problems and performing calculations accurately.For instance, consider the expression 3 + 5. Here, 3 and 5 are numbers, while the plus sign (+) is the operator that indicates addition. When we evaluate this arithmetic expression, we find that it equals 8. Similarly, if we look at a more complex arithmetic expression like 4 * (2 + 6), we first need to solve the expression inside the parentheses, which is 2 + 6 = 8. Then we multiply 4 by 8 to get 32. This illustrates how arithmetic expressions can involve multiple steps and operations.In everyday life, we encounter arithmetic expressions frequently. For example, when shopping, if an item costs $20 and you buy three of them, the total cost can be represented as the arithmetic expression 20 * 3. By evaluating this expression, you find that the total is $60. This practical application shows how arithmetic expressions are not just theoretical but also vital in real-world scenarios.Moreover, mastering arithmetic expressions lays the groundwork for more advanced mathematical concepts. In algebra, for instance, we often use variables in our arithmetic expressions. A simple expression like x + 5 involves a variable (x) along with a number (5). Understanding how to manipulate these expressions is crucial for solving equations and understanding functions.In conclusion, arithmetic expressions are foundational components of mathematics that help us perform calculations and solve problems. Whether we are adding, subtracting, multiplying, or dividing, recognizing and understanding arithmetic expressions enables us to navigate both academic and everyday mathematical situations effectively. As we continue to learn and apply these concepts, we enhance our numerical literacy and problem-solving skills, which are invaluable in many aspects of life. Therefore, investing time in mastering arithmetic expressions is undoubtedly worthwhile, as it equips us with the tools needed for both academic success and practical decision-making.

算术是数学的一个分支，涉及数字和基本运算，如加法、减法、乘法和除法。在算术中，一个重要的概念是算术表达式，它是数字和运算符的组合，表示一个值。理解算术表达式对解决数学问题和准确进行计算至关重要。例如，考虑表达式3 + 5。在这里，3和5是数字，而加号（+）是表示加法的运算符。当我们计算这个算术表达式时，我们发现它等于8。同样，如果我们看一个更复杂的算术表达式，例如4 * (2 + 6)，我们首先需要解决括号内的表达式，即2 + 6 = 8。然后我们将4乘以8得到32。这说明了算术表达式可以涉及多个步骤和运算。在日常生活中，我们经常遇到算术表达式。例如，当购物时，如果一件商品的价格是20美元，而你买了三件，那么总费用可以表示为算术表达式 20 * 3。通过计算这个表达式，你会发现总共是60美元。这一实际应用表明，算术表达式不仅仅是理论上的，它们在现实场景中也是至关重要的。此外，掌握算术表达式为更高级的数学概念奠定了基础。在代数中，例如，我们经常在我们的算术表达式中使用变量。一个简单的表达式如x + 5涉及一个变量（x）和一个数字（5）。理解如何操作这些表达式对于解决方程和理解函数至关重要。总之，算术表达式是数学的基础组成部分，帮助我们进行计算和解决问题。无论我们是在加法、减法、乘法还是除法，识别和理解算术表达式使我们能够有效地应对学术和日常的数学情况。随着我们继续学习和应用这些概念，我们提高了数值素养和解决问题的能力，这在生活的许多方面都是无价的。因此，投入时间掌握算术表达式无疑是值得的，因为它为我们提供了实现学术成功和实际决策所需的工具。