MATHEMATICS

Beauty of Mathematics !!!!!!!

1 x 8 + 1 = 9
12 x 8 + 2 = 98
123 x 8 + 3 = 987
1234 x 8 + 4 = 9876
12345 x 8 + 5 = 98765
123456 x 8 + 6 = 987654
1234567 x 8 + 7 = 9876543
12345678 x 8 + 8 = 98765432
123456789 x 8 + 9 = 987654321

1 x 9 + 2 = 11
12 x 9 + 3 = 111
123 x 9 + 4 = 1111
1234 x 9 + 5 = 11111
12345 x 9 + 6 = 111111
123456 x 9 + 7 = 1111111
1234567 x 9 + 8 = 11111111
12345678 x 9 + 9 = 111111111
123456789 x 9 +10= 1111111111

9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888
9876 x 9 + 4 = 88888
98765 x 9 + 3 = 888888
987654 x 9 + 2 = 8888888
9876543 x 9 + 1 = 88888888
98765432 x 9 + 0 = 888888888

Brilliant, isn’t it?

And look at this symmetry:

1 x 1 = 1
11 x 11 = 121
111 x 111 = 12321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
111111 x 111111 = 12345654321
1111111 x 1111111 = 1234567654321
11111111 x 11111111 = 123456787654321
111111111 x 111111111 = 12345678987654321

 

 

MATHEMATICS  LEARNING (FOR TEACHERS)

Elementary sites – http://edweb.tusd.k12.az.us/ekowalcz/math/elementary_web_sites.htm

Mathematics learning – http://mathematicslearning.blogspot.com/

 

CITE Journal – Mathematics –  http://www.citejournal.org/vol6/iss2/mathematics/article1.cfm

 

Teacher 2 teacher (T2T) – http://mathforum.org/t2t/

 

MATHEMATICIANS

Mathematicians Biography Index – http://www-groups.dcs.st-and.ac.uk/~history/BiogIndex.html

The World Great Mathematicians –  http://www.sci.hkbu.edu.hk/scilab/math/math.html

Biographies of Women Mathematicians – http://www.agnesscott.edu/Lriddle/women/women.htm

Women Mathematicians Alphabetical index – http://www.agnesscott.edu/lriddle/WOMEN/alpha.htm

Chronological list of Mathematicians – http://aleph0.clarku.edu/~djoyce/mathhist/chronology.html

Full Alphabetical index – http://www-groups.dcs.st-and.ac.uk/~history/Indexes/Full_Alph.html

Selected Mathematicians and Statisticians – http://www.infoplease.com/biography/science-mathematicians.html

Internet Mathematician>start – http://www.vts.intute.ac.uk/he/tutorial/maths

 

FUN WITH MATH            

Math Magician Games – http://www.oswego.org/ocsd-web/games/Mathmagician/cathymath.html

Guess The Number – http://www.funbrain.com/guess2/index.html

 

 

 

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