Fill the nine natural numbers 1-9 in the nine spaces so that the sum of the three numbers on the horizontal, vertical and diagonal lines is equal to 15

Fill the nine natural numbers 1-9 in the nine spaces so that the sum of the three numbers on the horizontal, vertical and diagonal lines is equal to 15

According to the meaning of the question, we can get that the center number must be 15 △ 3 = 5, and the sum of the other two numbers of each group in a straight line with 5 is 10, because 1 + 9 = 2 + 8 = 3 + 7 = 4 + 6 = 10, so we can adjust the position of the sum to 10

The natural numbers from 1 to 9 will be filled in the 9 spaces in the figure below to make each row
The 9 spaces are as follows:
❤❤❤
❤❤❤
&#Note that the upper and lower spaces are connected!

4 9 2
3 5 7
8 1 6

Fill in the 9 blanks with numbers from 1 to 9. The sum of every two rings in the five Olympic rings should be equal to 13

How are the spaces arranged? 4 + 9, 5 + 8, 6 + 7 are all equal to 13
Adopt

Fill in the nine blanks of the five rings of the Olympic badge with the nine numbers of 1:9, so that the sum of the numbers in each three circles is equal to 13

7 8 4
6 2 3 9
5 1