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在班级板报的“综合实践活动”专栏里,张贴着学生臧月、方晨阳、梅琳合作撰写的一份小课题研究论文——生活中的近似值上周,学习了取近似值的方法。带着这样的方法,我们回家进行了调查、测算,并请教了家长。我们发现,生活中取近似值的方法不只是课本上介绍的两种,共有三种,而且每一种的使用都有它们的具体情况。第一种是“四舍五入法”。适用于求物体
In the class board’s “Comprehensive Practice Activities” column, a small research paper co-authored by students Zang Yue, Fang Chenyang, and Mei Lin was posted on the column entitled “Approximation in Life” last week. With this method, we went home to investigate, measure, and consult the parents. We find that there are three ways in which life can be approximated, not just in textbooks, but also in the use of each. The first is “rounding ”. Suitable for seeking objects