Answer:
Contradiction to the conjecture that sum of two odd numbers is an odd number.
Explanation:
We have been given the expression 3+3=6
Here we can see that we are adding odd numbers we getting an even number
This is the one property we can conclude that sum of two odd numbers is an even number
Since, we have to fill the word in between
So, we can say that 3+3=6 serves as a/an contradiction to the conjecture that the sum of two odd numbers is an odd number.
We can take any other two odd numbers
Example 5+5=10.