Math Mania Contest
Young Saint Louis.com
813 Rotherham Dr.
Ballwin, Mo. 63011
(All entries must be postmarked by the
15th of the month to be eligible.)
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Entry for December 2005, Math Mania Contest:
Name: __________________________________ Age:
_____
Address: _________________________ School:
___________
City: _____________________ State: ______
Zip: __________
Contact phone: (_____) _____________________
December Math Mania
1. A primorial is where you multiply a prime
number by all of the prime numbers less than itself. For example,
5 primorial, written 5# = 5 x 3 x 2 = 30. What is 29#?
Answer: ________________
2. Fifty is the smallest number
that is the sum of two squares two different ways. For example,
and
What is the next number that
can be written as the sum of two squares two different ways?
Hint: It's less than 100.
Answer: ________________
3. Three and five are twin primes,
a pair of primes that differ by 2. Find two more pairs of
twin primes less than 100.
Answer: ________________
4. One way to write 27 as the
sum of 3 squares is 
.
Find another way to write it as the sum of 3 squares.
Answer: ________________
5. Replace x and y with different
values to make a true equation.
Answer: ________________
6. There is a young lady of Lee,
Whose age has its last digit three.
If you total the two,
Which is easy to do,
One less than a square you will see.
How old is
the lady of Lee?
Answer: ________________
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HERE FOR ANSWERS TO LAST MONTH'S MATH MANIA
After
trying out a new story-writing Math Mania last
month, we're back to the traditional math puzzlers for December.
But, some of the problems are pretty quirky.