Explain way in your mind to remember 9x6 and 8x7

You remember it because they are 6 and 7 or 9 and 8 have something together and that's how you remember it                                                           9x6=54                                                                                                                8x7=56                                                   
and also you just need to add 2+54=56

so that's all you real need to know about it

So 9x6 and 8x7 if you do 9x7 it's 54 and all you just need to do is add 2

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.