Friday, February 15, 2008

V-Day puzzle (a day late)

Every student in a second grade class sends a valentine to each of the other students in the class, for a total of 306 valentines. How many students are in the class?
I'll post the answer tomorrow if no one figures it out.

3 comments:

Lydia said...

18

18 kids each give 17 Valentines
18x17=306

Carrie & Karl said...

It only works if they don't give one to themselves, which isnt' the case in Kaleb's preschool. He got one from himself.
:)

Della Hill said...

Both of you are right.
I came up with this as an equation to figure it out:
x*x-x=306.
Lydia's is simpler.