If
you end up with a 1, the
number you started with is HAPPY!
v
Is 15 HAPPY?
v
What
about 7?
v
What
about 24?
v
Investigate
some other numbers.
v
How
many numbers less than 50 are HAPPY?
v
Is
there a quick way of telling if a number is HAPPY?
v
Can
you find a method of producing SAD numbers.
v
Find
out which numbers are SAD?
