Most people will come up with the number 40 by adding each row and coming up with the grand total. Don’t be too quick to pat yourself on the back, because 40 is not the only answer.
The test makers agree that adding 1 + 4=5, but those who think a little deeper will get the answer by adding 1 + 4 and multiplying it by 1. Then, they add 3 to 6 x 3 and get 21. Finally, they add 8 to 11 x 8 and get 96.
How did you do?