1. Number Sense Contest and Mathematics Contest Jam Session
Larry White
Box 25
Millersview, Tx
UIL State NS & Mathematics Contest Director
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2. Be sure to ... sign in; clean up your area when you leave; and
“HAVE A GREAT DAY!”
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3. Number Sense Contest and Mathematics Contest Jam Session
108th edition of the
Constitution and Contest Rules
Of the University Interscholastic League
Each contest now has its own handbook
containing contest information and rules
governing the contest (see the UIL Store).
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4. Number Sense Contest and Mathematics Contest Jam Session
No new mathematicians.
No new special type of numbers.
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Number Sense ---- Mathematics

5. No changes that I know of. Any questions about any rules?
Number Sense Contest and Mathematics Contest Jam Session
RULES
No changes that I know of.
Any questions about any rules?
Number Sense ---- Mathematics
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6. Problems from past years Number Sense ---- Mathematics
Number Sense Contest and Mathematics Contest Jam Session
Problems from past years
Number Sense ---- Mathematics
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7. Miles  Kilometers
using
Fibonacci numbers
What ????????
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8. The distance from Millersview to Edinburg is
413 miles or 665 kilometers.
F14 + F9 + F3 = = 413 miles
(note: the sum of the least amount of non-consecutive Fibonacci numbers)
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9. The distance from Millersview to Edinburg is
413 miles or 665 kilometers.
F14 + F9 + F3 = = 413 miles
(note: add 1 to each of the Fibonacci numbers above)
F15 + F10 + F4 = = 668 kilometers
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10. > Miles to kilometers or kilometers to miles … works both ways.
Observations:
> Miles to kilometers or kilometers to miles … works both ways.
> Note the ratio of
Miles/kilometers = 413/668 = …
Kilometer/miles = 668/413 = …
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11. Special Numbers & Unusual Primes
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12. Kaprekar Number 452 = 2025 and 20 + 25 = 45
The digits of the number squared can be divided into two parts such that sum of parts is equal to the original number and none of the parts has value 0.
452 = 2025 and = 45
2972 = and = 297
132 = 169, but is not 13
nor is
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13. Narcissistic Number (Armstrong Number)
Any n-digit number that is the sum
of the nth power of each of its digits.
1 = = = 31
(all single digit numbers are narcissistic)
153 = = = 153
1634 = ? = 1634
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14. Harshad Number (Niven Number) (multidigital number)
Any number which is divisible by the sum of its digits.
(all single digit numbers are Harshad)
10 is divisible by 1 + 0
72 is divisible by 7 + 2
108 is divisible by
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15. Number Sense Contest and Mathematics Contest Jam Session
Primes – Primes – Primes
How many types of primes can you name?
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16. HAVE A
GREAT DAY!
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