A travel game where you use your math skills by finding license plates which have the right numbers.
Passive. Little or no movement is required.
2 to 6 players
Choose a number between 1 and 20. The other players look for license plates that have numbers on them adding up to the chosen number. The first person to find that license plate gets a point and gets to be "it" and choose the next number.
For older players:
You can adapt the game for older players by playing the same game with multiplication. This variation works better if you have the players multiply only two of the numbers to get the desired value.