Can you put natural numbers 1-9 into the graph so that the sum of the three numbers in each row is even? fast
Hello, angel Amy
This is impossible, because the sum of the nine natural numbers 1-9 is 45, which is odd, and it is impossible to divide odd numbers
Three even numbers can only be divided into two even numbers and one odd number, or all three are odd numbers
Are you right? Good luck. Goodbye
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