It’s the 2010 FIFA World Cup and chances are your favorite team has played two matches. With one to go, you aren’t sure exactly what has to happen in order for the squad to advance to the next round.

Can you solve the matchstick math puzzle? The equation 9+5-3=1 is written out with 22 matches. Drag one match to change one of the digits to create the correct equation. The answer is at the bottom of ...