For this tricky problem you’ll need to think outside of the box! It may look like a simple addition problem at first, but there’s more than meets the eye with this math riddle.

Even though there’s usually one right answer for math problems, two common solutions are causing a heated debate all over the world. Let’s see if you can get it right!

So take your time and get out your pencil and paper. The solution will either hit you like a ton of bricks, or you’ll be left scratching your head. Once you think you have the solution, or you’re just about ready to give up, scroll down to see the correct answer!

Here’s the first solution to the problem that’s stumping the Internet world:

To begin with, most people will agree that 1 + 4 = 5.

Then you’ll move onto the next line, where you’ll add 2 + 5 to the sum of 5 in the equation above. That gives you the answer of 12.

On the following line, you’ll apply the same type of process. 3 + 6 = 9, then add the 9 to the sum in the equation above (12) to get the total of 21.

Finally, take the 8 + 11 in the last equation, which equals 19, and add it to the sum of the previous problem (21). That should give you a grand total, of 40!

Despite the widely accepted notion that 40 is the correct answer, there’s also a case to be made if you came up with 96 as the final total.

The second solution models itself after the equation: a + b = a + a(b).

Let’s dive in deeper:

Obviously, 1 + 4 = 5. But you could also reach 5 by adding 1 to 4 times 1.

With the second line, 2 + 2(5) = 12. This is the sum also listed in the equation above.

Moving on, 3 + 3(6) = 21. Once again, that’s the answer in the picture.

So to find the final solution using this method, you’ll add 8 to 8 times 11 to get 96.

Most of the population comes up with 96 for the answer, but what about you? Let the world know if you got one of these answers, or something else altogether, in the Facebook comments section. If you’re still feeling up to it, here’s one more GoTumble math riddle to prove your chops!

If those explanations were still a bit confusing, watch this helpful video to ease your mind!