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题目计算1/2+1/6+1/10+1/15+1/21+1/28+1/36+1/45.这道计算题是我们七(03)班魏阳阳同学提出的,为培养大家的创新意识和探究能力,老师把这道题抄在黑板上,让同学们在课余时间思考,看谁做的比较快,又较有创意.这引起了大家的研究兴趣,经同学们的独立探究和小组间的合作交流,得出了以下几种解法.解法一:分组法把易于计算的几个分数分成一组,合并后得出的项数就少了许多,再次把易于计算的分数分成一组,再合并,直到得出结果为止.
The title is calculated 1/2 + 1/6 + 1/10 + 1/15 + 1/21 + 1/28 + 1/36 + 1 / 45. This calculation question is proposed by our classmate Weiyang Yang of class 7 (03) In order to cultivate everyone’s sense of innovation and ability to explore, the teacher copied the question on the blackboard, allowing students to think after school, to see who do faster and more creative. This has aroused everyone’s interest in research, by the students Solution of the following method: The grouping method divides several easy-to-calculate scores into one group, the number of the combined result is much less, and once again the easy-to-use The calculated scores are grouped together and combined until the result is reached.