en.wikipedia.org/wiki/9_(number)

9 is the natural number following 8 and preceding 10. Contents. [hide]. 1
Alphabets and codes ... Nine is a number that appears often in Indian Culture
and mythology. Some instances are enumerated b...

www.ask.com/math/comes-groups-nine-8100cb8077f5abf4

Things that come in groups of nine include the squares on a tic-tac-toe grid, the
balls in a nine-ball pool game and the players on a baseball team. The fruits of ...

www.ask.com/math/comes-nines-77905f80f25c2e83

The game of baseball is played in nine innings, cats are fabled to have nine lives,
the U.S. Supreme Court has nine justices and there are nine ladies dancing in ...

nrich.maths.org/71

Well now, what would happen if we lost all the nines in our number system? ...
We all use ten very useful things that come in very handy for all sorts of things.

mathforum.org/library/drmath/view/74678.html

This is actually where the name "casting out nines" comes from. ... So when we
cast out nines, we treat 0 and 9 as the same thing; if we get a 9 ...

www.cnet.com/news/a-clock-for-math-whizzes/

Jan 6, 2008 ... For example, 5 o'clock is the square root of nine (3), factorial (3x2x1 = 6), ... While
we're on the subject of archaic clock technology, how come ...

mathforum.org/library/drmath/view/53339.html

Thanks for writing Dr. Math. You asked an excellent question, and I liked Steve's
first response to you, but I thought I might add two things.

www.neatorama.com/2008/01/07/a-clock-for-math-whizzes/

Jan 7, 2008 ... The clock sports math equations involving the number 9 and is made by the
Triple ... For example, 5 o'clock is the square root of nine (3), factorial (3x2x1 = 6),
minus 9/9 (6-1 = 5). ... Neat stuff from the NeatoShop: ... Come on.

www.thefreedictionary.com/nine

Define nine. nine synonyms, nine pronunciation, nine translation, English
dictionary definition of nine. n. ... A set of nine persons or things, especially: ..... to
take us captives, and not to destroy us; but if nine of us would come out, and treat
with ...

mathworld.wolfram.com/CastingOutNines.html

"Casting out nines" is an elementary check of a multiplication which makes use of
the congruence 10^n=1 (mod 9). ... Flannery, S. and Flannery, D. In Code: A
Mathematical Journey. London: Profile Books ... THINGS TO TRY: 12-wheel
graph.