主要内容
基础几何
长方形的面积复习
复习长方形的面积的基础,并且做一些练习题.
例题1:
start text, 面, 积, end text, equals, start text, 长, end text, times, start text, 宽, end text
empty space, equals, 6, times, 2
empty space, equals, 12, start text, space, 个, 单, 位, 面, 积, end text
empty space, equals, 6, times, 2
empty space, equals, 12, start text, space, 个, 单, 位, 面, 积, end text
例题2
start text, 面, 积, end text, equals, start text, 长, end text, times, start text, 宽, end text
empty space, equals, 7, times, 4
empty space, equals, 28, start text, space, 个, 单, 位, 面, 积, end text
empty space, equals, 7, times, 4
empty space, equals, 28, start text, space, 个, 单, 位, 面, 积, end text