Kind Sir—I teach 5th grade.I see in my notes I once got some numbers related to the Impossible 15 Problem, but my notes do not show what this is.Can you help?Thanks!Archie Lintz in Indiana
I teach 5th grade.
I see in my notes I once got some numbers related to the Impossible 15 Problem, but my notes do not show what this is.
Can you help?
Thanks!
Archie Lintz in Indiana