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April's Math Mania is Challenge 24
(Part II)

You were introduced to the Challenge 24-type of questions in the December, 2007, edition. They are problems that require you to use different math symbols to make the four numbers of each puzzle come out to a final answer of 24.

Ms. Math Mania, teacher Amy Ruzicka of St. Gabriel School, gave you a first look at this sort of puzzle four months ago. This is Part II.

That means that you can go back to December's YSL.com edition and study the same sort of puzzle. But, even more importantly, by going to the January, 2008, edition you can find out the answers.

That should give you a better chance of answering the April problems.

Remember, with the YSL.com Math Mania, you don't have to worry about any grades. You get a chance to try different types of math problems strictly for fun---and for a chance to win a Border's book certificate.

YSL.com checks all completed entries and picks those with all answers correct. Then, there is a random drawing and kids get a chance at $10 certificates.

The Math Mania competition is open to kids 8 to 13 around the metro St. Louis area. An entry blank and questions for April are listed below.

To enter the April contest, fill out the attached entry form and give answers to the questions. Be sure to follow instructions when completing the entry form.

In the May edition of YSL.com, we'll publish the answers to these April puzzles and name any winners.

How to enter:

  1. Print out the following entry form.
  2. Fill out your name, address and telephone number.
  3. Answer the questions about the Challenge 24 (Part II).
  4. Put your completed entry into a stamped, addressed evvelope.
  5. Be sure to print the entry form so we can be sure of spelling.
  6. Mail the entry to:

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.)

-----------------------Clip here to make entry form-----------------------

Entry for April 2008, Math Mania Contest:

Name: __________________________________ Age: _____

Address: _________________________ School: ___________

City: _____________________ State: ______ Zip: __________

Contact phone: (_____) _____________________

 

 

April Math Mania Challenge: 24 (Part II)

The rules of "24" are very simple: Use each of the numbers only once to form an expression that equals 24. You may use addition, subtraction, multiplication, division, and parentheses. Don't forget to follow the order of operations!

If you'd like to see examples, check out December's Math Mania.

1.
7
9
14
25
Answer:
2.
12
16
19
20
Answer:
3.
3.5
2
4
6
Answer:
4.
24
14
24
10
Answer:
5.
12
2
0.6
16
Answer:
6.
0.8
12
0.6
3
Answer:

 


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