结合律

Lead the students to conclude the above concept and laws.

引导学生概括出乘法的意义和乘法交换律、结合律。

This is the Associative Property of Multiplication. Read after me, please.

师：这就是乘法结合律， 请跟着老师读。

Grasp Property and the Associative Property of Addition.

掌握加法交换律和加法结合律，培养学生初步的归纳推理能力。

Table 2.1 at the end of this chapter summarizes precedence and associativity for all operators.

本章末尾的表2-1完整总结了所有运算符的优先级和结合律。

Further on, we can specify an algebra that consists of axioms for commutativity, distributivity, associativity, etc.

进一步的， 我们可以定义包含交换律 、 分配律 、 结合律等公理的代数。