# In Atherton, number games are more fun!

Over summer, practicing math doesn’t have to come hand-in-hand with boring worksheets and times tables. Try this fun number game with your Atherton kids to get them pumped for math over summer and excited for school in fall! And if your kids aren’t the “math-is-so-fun” types, they’ll at least get in some good problem-solving time over the break.

## Pico, Fermi, Bagel: The ultimate number game puzzle

Pico, Fermi, Bagel is a super fun game for in the car, at the dinner table, or any old time.

Either two people can play (thinker and guesser), or there can be one thinker and multiple guessers, taking turns to guess the number first.

Here’s how it works:

- The thinker begins by thinking of a number with however many digits are decided. The number should have no repeating digits (we’ve never tried with repeating digits, anyway).
- The guessers take turns guessing the number; or if there is one guesser, she or he can just continue guessing.
- To each guess the guessers make, the thinker will respond with one of the following hints:

- If the guess has no correct digits, the thinker will call: “Bagel”
- For each correct digit in the wrong place, the thinker will call: “Pico”
- For each correct digit in the correct place, the thinker will call: “Fermi”

For example: As the guesser, if you guess the number 562 and you receive the clue “Bagel, Fermi, Fermi,” you know your number contains two digits that are in the number but not in the correct place. The trick is that you won’t know to which numbers the clues apply. (Or the thinker can just say “Fermi, Fermi”– the meaning stays the same, sans “Bagels.”)

For more fun math number games, check out Mathnasium of Palo Alto-Menlo Park: http://www.mathnasium.com/paloalto-menlopark