You add 2 blue each time!You add 2 more to what you added in the pattern before for the yellow blocks!In pattern 4 their would be 9 blue and 16 blue:)
That was Really fun Mr Moriarty. I like doing number patterns. For me it was a challenges but that made it even more fun for me.
I meant 16 yellow and 9 blue:)I had a bit of a typo!
I think the answer is 16 yellow and 9 blue.You add 2 blue each time and then you add the yellow to complete the square.