Math Forum || K-12 Math Puzzles || Problems of the Week || Student Center

 This Web page is intended to record solutions submitted by students in grades three through twelve. Submissions will be posted starting February 1, 2007. Rules: use the digits in the year 2007 and the operations of +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for the counting numbers 1 through 100. Please read and follow the rules carefully. Teachers may print out worksheets for students to record their findings, or print sheets of manipulatives for students to use.

## STUDENT SOLUTIONS: 25

 Solution Name Grade School (7-0!-0!)^2 Chua Cheng Aik 9 Hwa Chong Institution 27-0!-0! Neal Amos 10 Brookstone School 27-0!+0! Janine A. 6 Parker Middle School 27-0!-0! Brandon Cepas 7 Rohrer Ms 27-0!-0! Bob Chen 8 Northwest Junior High 27-0!-0! Timothy Tay Kai Cheng 8 Hwa Chong Institution (7-2-(0!))!+(0!) Noah Delius 6 John F. Kennedy School, Berlin, Germany 27-0!-0! Tran Ha Duong 9 3h, Hwa Chong Institution 0!+((0!+7)/2)! Michael Endick 8 Foothill Middle School (7-2-0!)!+0! Kam Mao Quan Gabriel 7 Hwa Chong Instituition (7-2-0!)!+0! Chan Tuck Ging 7 Hwa Chong Institution 27-0!-0! Jan Eric Hellenbrand 6 John-F.-Kennedy 27-0!-0! Yeo Si Heng 8 Hwa Chong Instituition 27-0!-0! Cara Hudak 8 Hudson Montessori Middle Scholl 27-0!-0! Matt H 6 Parker Middle School (7-2-0!)!+0! Lee Zi Jian 1 Hwa Chong Instituition 27-(0!+0!) Sim Zhi Jian 8 Hwa Chong Instiution 27-0!-0! Ng Xu Jie 8 Hwa Chong Institution (7-0!-0!)^2 Lau Wei Jie Jonathan 9 Hwa Chong Institution (7-2-0!)!+0! Tan Song Kai 8 Hwa Chong Institution 20+7-0!-0! Olivia Kamensky 8 Brookstone School (7-2)^(0!+0!) Szeto Kah Keong 8 Hwa Chong Institution 27-(0!+0!) Delwin Koh 8 Hwa Chong Institution 27-0!-0! Michelle Kozak 7 Mount Olive Middle School (7-2)^(0!+0!) Benjamin Low 8 Hwa Chong Institution 27-0!-0! Chris Mulroy 7 Rohrer Ms 27-0!-0! Jessica M 7 Mount Olive Middle School 27-(0!+0!) Margaret M. 6 Parker Middle School 27-0!-0! Ng Jun Da Nelson 8 Hwa Chong Instituition 27-0!-0! Yuxiao Ning 12 Hoboken High School (7-2-0!)!+0! Ow Zhen Quan 8 Hwa Chong Institution 27-0!-0! Tang Zhuo Hao Ray 7 Hwa Chong Institution 27-0!-0! Glenn Goh Rongjie 9 Hwa Chong Insituition (7-2-0!)!+0! Benjamin Lin Ruiyang 1 Hwa Chong Institution 27-0!-0! Caylie Scherba 8 Hudson Montessori Middle School 27 - 0! - 0! Nayan Shah 8 Hudson Montessori School (7-2-0!)!+0! Chong Tjen-Yao 7 Hwa Chong Institution 27 - 0! - 0! Elizabeth Wargo 8 Hudson Montessori School (7-0!-0!)^2 Ang Chong Wei 9 Hwa Chong Institution (7-2-0!)!+0! Chong Zhi Wei 7 Hwa Chong Insitution 27-0!-0! Tan Yi Wei 7 Hwa Chong Institution 27-0!-0! Jerrold Au Ying Xian 9 Hwa Chong Institution (7-0!-0!)^2 Lim Han Xin 7 Hci (7-0!-0!)^2 Shaun Lum Yu Xuan 3 Hwa Chong Institution (7-2-0!)!+0! Lee Jun Yi 8 Hwa Chong Institution .2^(-0!-0!^7) Low Kah Yi 9 Hwa Chong Institution 27-0!-0! Zhou Yifan 3 Hwa Chong Institution (7-2-0!)!+0! Zou Xiang Yu 7 Hwa Chong Institution [7-(0!)-(0!)]^2 Xiao Yuting 8 Hwa Chong Institution 27-(0!)-(0!) Ng Soon Zhou 7 Hwa Chong Institution Highschool (7-0!-0!)^2 Yu Zhou 1 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.