## Background:

In the Spring of 2001, a webpage project was begun in the math site called Math Forum. It involved forming mathematical expressions, using all the ten digits 0 to 9, that when evaluated, equaled 100. To see it, click HERE.

Many persons have submitted examples of their creativity and inspiration. But, for more than a year now, due to technical troubles, I, the creator of that page, have not been able to upload conveniently newer submissions. Hence, WTM has decided to establish this "sister site" here. As future contributions come in to either site, they can be judged as worthy of inclusion, or not. Posting here will be greatly facilitated by this.

So, without further ado, we invite you to send in your favorite AKD expressions - directly to WTM (see address link below) or from the Math Forum's website.Good luck!

--WTM(9/25/03)

# SolutionName (Grade)School1 sqrt(9 + 8 - 7 - 6) x 5 x (4 + 3 + 2 + 1 + 0) Melissa Gronzo (13+) Wayne State

University2 (9 + 8 - 7 - 6 + 3 - 2 + 1x0)x4x5 Milen Nikolov (12) Mathematical

High School

Varna, Bulgaria3 (sqrt(9) + 2)(1 + 3) x sqrt(7 + 8 + 6^0) + 4x5 Milen Nikolov (12) Mathematical

High School

Varna, Bulgaria4 4!/3! * 5^2 + (6+9)*0/(7+8)*1 Zsuzsanna Sukosd (11) BirkerÃ¸d Gymnasium, Denmark 5 (89 + (4-3) + 5*2) * 716^0 Samantha Watson (4) Township Three 6 4*9 - 6 + (1 * 2^5) + 38 * 7^0 Gene Francis De Guzman Valdez (13+) Univ. of Santo Tomas, Philippines 7 sqrt81*20 - (93 - 67 + 54) Cindy Wang (7) Dunman High School 8 3*9 + 5 - 7 + 68 + 4 + 2^1 + 0! Gene Francis De Guzman Valdez (11) Univ. of Santo Tomas, Philippines 9 1 * 25 * 6/3 * 8/4 + 0^79 Thijs "TaZ"

Zumbrink (1)Huizermaat, Netherlands 10 [(3+8)*(4!/2)]-(6*7)+(1+9)(7^0) Christopher

(10)Manila Science

High School11 (1 + 9)/(2 + 8)*(3 + 7)*(4 + 6)* 5^0 Dhruv Shangari

(8)Cariboo Hill

Secondary12 13 14 15 16 17 18 19 20

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