What you see in the above picture at least should be recognizeable to those who are in the upper grades of elementary school. Perhaps even in 6th, 7th, and 8th grades you may not recognize the square root of -1. Explanation below!
I shall help you out with this message because it took me a while to get it myself. The square root of -1 is i a negative integer, 2 cubed or 2 to the 3rd is 8, the next symbol is sum, and the final symbol is pi.
Therefore i eight sum pi. I ate some pie...and it was delicious!
Eventually I got the sqaure root of one and then the sum and pi. I just
got stuck on 2 cubed, for some reason it didn't occur to me to just plug
that in. It would've led me to the obvious conclusion!