I want to inform you the Pri 1 problem sum you shared is a big joke. Your contributor must have photoshop the original problem sum and made it unsolvable. Instead of 2 in the lower left quadrant, it should be 20.
When it is 20, you will be able to see the pattern and the problem can be solved with some thinking. Your readers are freaking out because of the difficulty, hope you will do the right thing to correct their misconception.
I am sure you did not know it was fake either unless you are a math whiz or teacher. Please share.