A 9-year-old wrote this weirdly tricky math problem. The system of nonlinear equations is harder to solve than you think. Can you answer it?

Here are 10 math problems that confused people across the internet. Can you solve them?

If equations in Microsoft Word aren’t switching to the professional math layout, it’s usually a formatting mismatch ...

Test your knowledge of algebra along with your attention to detail with this plant-themed math problem that uses plants in place of numbers. How quickly can you solve the equation?

But what if you could use your smartphone to solve equations by pointing the camera at the problem in your textbook instead of using a graphing calculator? That is the idea behind PhotoMath.