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: 26

 Solution Name Grade School 20+7-0! Kate Ahrens 7 Mount Olive Middle School (20-0!)+7 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 20+7-0! Timothy Tay Kai Cheng 8 Hwa Chong Institution 27-0*0 Calvin Sim Poh Chuan 12 Hwa Chong Institution 27-0!-0 Billy C. 6 Parker Middle School 20-0!+7 Khu Boon Tat Daren 9 Hwa Chong Institution 27-0^0 27-0!+0 Tran Ha Duong 9 3h, Hwa Chong Institution 27-0!+0 Michael Endick 8 Foothill Middle School 20-0!+7 Kam Mao Quan Gabriel 7 Hwa Chong Instituition 20+7-0! Chan Tuck Ging 7 Hwa Chong Institution -0!+20+7 Maggie G. 6 Parker Middle School 20-0!+7 Wu Zi Hao 9 Hwachong Institution 27-0^0 Yeo Si Heng 8 Hwa Chong Instituition 27-0!-0 Cara Hudak 8 Hudson Montessori Middle Scholl 20+7-0! Lee Zi Jian 8 Hwa Chong Instituition 20+7-0! Sim Zhi Jian 8 Hwa Chong Instiution 27-0!-0 Ng Xu Jie 8 Hwa Chong Institution 20+7-0! Lau Wei Jie Jonathan 9 Hwa Chong Institution 27-0!-0 20+7-0! Tan Song Kai 8 Hwa Chong Institution (20+7)-(0!) Olivia Kamensky 8 Brookstone School 27-(0!+0) Tim Kenna 7 Rohrer Middle School 27-(0!)+0 Szeto Kah Keong 8 Hwa Chong Institution 27-(0!+0) Delwin Koh 8 Hwa Chong Institution 27 - 0^0 Won Cheng Yi Lewis 9 Hwa Chong Institution 27-0^0 Amanda L. 6 Parker Middle School 7+20-0! Kelley Mcintire 9 Brookstone 27-0!-0 Jessica M 7 Mount Olive Middle School 27-0!+0 Margaret M. 6 Parker Middle School 20-0!+7 Ng Jun Da Nelson 8 Hwa Chong Instituition 20+7-0! Yuxiao Ning 12 Hoboken High School 27-0!+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 27-0!-0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 27-0!-0 Caylie Scherba 8 Hudson Montessori Middle School (27-0!)-0 Kassidy Schmidt 1 Rohrer Ms 27-0!-0 Nayan Shah 8 Hudson Montessori School 27-0^0 Katie S 6 Parker Middle School 20-0!+7 Darren Toh 9 Hwa Chong Institution 20-0!+7 Ang Chong Wei 9 Hwa Chong Institution 20-0!+7 Chong Zhi Wei 7 Hwa Chong Insitution 27-0!-0 Tan Yi Wei 7 Hwa Chong Institution 27-0^0 Abby W. 6 Parker Middle School 20+7-0! Lim Han Xin 7 Hci 20-0!+7 Shaun Lum Yu Xuan 3 Hwa Chong Institution 27-0^0 Hshieh Chyi Yan 7 Hwa Chong Institution 27-0!+0 Lee Jun Yi 8 Hwa Chong Institution 20-0!+7 Low Kah Yi 9 Hwa Chong Institution 20+7-0! Zhou Yifan 3 Hwa Chong Institution 27-0!-0 Zou Xiang Yu 7 Hwa Chong Institution 27-(0!)+0 Xiao Yuting 8 Hwa Chong Institution 27-(0!)-0 Ng Soon Zhou 7 Hwa Chong Institution Highschool 20-0!+7 Yu Zhou 1 Hwa Chong Institution 20+7-0! Chrissa 6 John F. Kennedy School 20-(0!-7) NergüL 10 ÖZel Fatih Sultan Lisesi

Please notify Judy Ann Brown of any errors.