探索运算顺序的数学推理:重新排列过程组件PEMDAS

Journal of Mathematics Education at Teachers College Pub Date : 2013-11-26 DOI:10.7916/JMETC.V4I2.633

J. Lee, Susan Licwinko, Nicole Taylor-Buckner

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引用次数: 5

摘要

PEMDAS是一种助记器，用于记住计算包含多个操作的表达式的顺序。然而，学生们经常在计算表达式时犯错误，这些表达式要么是乘法，要么是除法，要么是加减法。本文探讨了运算顺序的数学推理及其有效性的一种新方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Exploring Mathematical Reasoning of the Order of Operations: Rearranging the Procedural Component PEMDAS

PEMDAS is a mnemonic device to memorize the order in which to calculate an expression that contains more than one operation. However, students frequently make calculation errors with expressions, which have either multiplication and division or addition and subtraction next to each other. This article explores the mathematical reasoning of the Order of Operations and the effectiveness of a new approach.

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