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题目:下图中的一个小圆圈里已填有数字1,请你把3、4、5、6分别填入另外四个里,使同一个大圆上的小圆圈中三个数的和都是10。【分析与解】看图可知,数字1在两个大圆相交的位置(交点上),因此,这个1既是左边大圆上的数,又是右边大圆上的数(也就是说,1是个公用数)。由于1加9得10,所以,解答本题的思路是:把另外四个数分成两组,使每组两个数的和为9;9再加上已有的1,每个大圆上三个数的和就是10了。
Title: The following figure has a small circle filled with the number 1, you put 3,4,5,6, respectively, fill in the other four, so that the same circle on a small circle in the three numbers are 10. [Analysis and Settlement] The figure shows that the number 1 at the intersection of the two great circles (intersection), therefore, this is a number on the left of the big circle, but also the number on the right circle (that is, 1 is a public number ). Since 1 plus 9 is 10, so, the answer to this question is: The other four numbers are divided into two groups, so that the sum of two numbers of each group is 9; 9 plus the existing 1, each on the big circle of three And the sum of the number is 10.