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: 9

 Solution Name Grade School 7+2+0+0 Kate Ahrens 7 Mount Olive Middle School 2+0+0+7 Chua Cheng Aik 9 Hwa Chong Institution 2+7+0+0 Neal Amos 10 Brookstone School 7+2+0+0 Janine A. 6 Parker Middle School 2+0+0+7 Marianne A 6 Parker Middle School 7+2+0+0 Nick A 6 Paker Middle School 2+7+0+0 Anton Baker 6 John-F-Kennedy School 7+2+0+0 Abbie Basso 7 Rohrer Middle School 2+0+0+7 Morgan Batson 9 Brookstone School 7+2+0+0 Johnny B. 6 Parker Middle School 7+2+0+0 Justen B 6 Parker Middle School 2+7+0+0 Karen B. 6 Parker Middle School 2.00+7 Meghan B 6 Parker Middle School (2+0)+(0+7) Brandon Cepas 7 Rohrer Ms 7+2-0!+0! Bob Chen 8 Northwest Junior High 7+2-0+0 Timothy Tay Kai Cheng 8 Hwa Chong Institution 7+2+(0x0) Calvin Sim Poh Chuan 12 Hwa Chong Institution 2+0+0+7 Paxton Chia 8 Hwachong Institution 2+0+0+7 Hunter Ciuba 8 Broodkstone 2+0+0+7 Amber Coleman 9 Brookstone High School 2+0+0+7 Jackie Cuneo 7 Rohrer Ms 7+2+0+0 Amy C 6 Parker Middle School 7+2+0+0 David C 6 Parker Middle School 2+0+0+7 Jake C 6 Parker Middle School 7+2+0+0 Troy C. 6 Parker Middle School 2+0+0+7 sqrt(2)xsqrt(0!+0!)+7 Khu Boon Tat Daren 9 Hwa Chong Institution 7+2+0+0 Noah Delius 6 John F. Kennedy School, Berlin, Germany 7+0+0+2 Jina Desai 8 Brookstone 2+0+0+7 Tran Ha Duong 9 3h, Hwa Chong Institution 2+0+0+7 David D 6 Parker Middle School 7+2+0+0 Erica D 6 Parker Middle School 2+7-0+0 Mae D 6 Parker Middle School 2+0+0+7 Michael Endick 8 Foothill Middle School 2^0+(0!+7) Lim Yu Sheng Fabian 9 Hwa Chong Institution 7+2-0-0 Tim Freborg 7 Hudson Montessori (2+7)+(0+0) Amanda Fry 7 Rohrer Ms 7+2+0+0 Sam F 6 Parker Middle School 2+0+0+7 Kam Mao Quan Gabriel 7 Hwa Chong Instituition (0*0)+7+2 Jake Garn 7 Rohrer M.S. 7+2+0+0 Chan Tuck Ging 7 Hwa Chong Institution 2+0+0+7 Aly G. 6 Parker Middle Shcool 0+0+2+7 Maggie G. 6 Parker Middle School 2+0+0+7 Wu Zi Hao 9 Hwachong Institution 7+2+0+0 Nicholas Heng 8 Hwa Chong Institution 2+7+0+0 Yeo Si Heng 8 Hwa Chong Instituition 7+2+0+0 Angelina Hintze 6 John F. Kennedy School 2+0+0+7 Cara Hudak 8 Hudson Montessori Middle Scholl 2+0+0+7 Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 2+7+0+0 Matt H 6 Parker Middle School 7+2+0+0 Olivia H 6 Parker Middle School 7+2+0+0 Peter H 6 Parker Middle School 7+2+0-0 7+2-0!+0! Lee Zi Jian 8 Hwa Chong Instituion 7+2+0-0 Sim Zhi Jian 8 Hwa Chong Instiution 7+2+0+0 Chow Zheng Jie 9 Hwa Chong Institution 7+2+0+0 Ng Xu Jie 8 Hwa Chong Institution 07+02 Tan Wei Jie 7 Hwa Chong Institution 2+0+0+7 Lau Wei Jie Jonathan 9 Hwa Chong Institution 7+2+0+0 Marcus Phoa Junxiong 9 Hwa Chong Institution (High School) 2+7+0+0 Tim J. 6 Parker Middle School 7+2+0+0 Tan Song Kai 8 Hwa Chong Institution 2+0+0+7 Olivia Kamensky 8 Brookstone School 7+2-0-0 Delwin Koh 8 Hwa Chong Institution 7+2+0+0 Michelle Kozak 7 Mount Olive Middle School 7.0+2.0 Geena K. 6 Parker Middle School 7-0-0+2 2.0 + 7.0 7+2!+0+0 0^0( 2+7) 7+2+0+0 Won Cheng Yi Lewis 9 Hwa Chong Institution 2+0+0+7 Benjamin Low 8 Hwa Chong Institution 7+2!*0^0 Amanda L. 6 Parker Middle School 7+2+0+0 Ashley L 6 Parker Middle School 2+7+0+0 Luke Mansour 9 Brookstone School 2+7+0-0 Will Mathews 6 John F. Kenedy School 0+0+7+2 Kelley Mcintire 9 Brookstone (2+0)-0+7 Ella Medicus 8 Hudson Montessori School 7+2+0+0 Chris Mulroy 7 Rohrer Ms 7+2-0-0 Ankit M 6 Parker Middle School 2+0+0+7 Bre M 6 Parker Middle School 7+2+0+0 Brendan M. 6 Parker Middle School 7+2+0+0 Connor M. 6 Parker 7+2+0+0 Jessica M 7 Mount Olive Middle School 2!+7+0+0 Kelsey M 6 Parker Middle School 7+2-0-0 Kevin M 1 Parker Middle School 2+7+0+0 Margaret M. 6 Parker Middle School 7+2+0+0 Monie M 6 Parker Middle School 2+7+0+0 Natalie M. 6 Parker Middle School 2+7-0-0 Olivia M 6 Parker Middle School 7+2+0+0 Ryan M 6 Parker Middle School 7^0!+2^0! Ng Jun Da Nelson 8 Hwa Chong Instituition 7+2+0+0 Yuxiao Ning 12 Hoboken High School 7+2+0-0 Cam O 6 Parker Middle School (7+2)+(0+0) Sio O 6 Parker Middle School 7+2+0+0 Vanessa O'c 6 Parker Middle School 2+0-0+7 Ow Zhen Quan 8 Hwa Chong Institution 7+2^0+0! Maria Inez Quesada 9 Christian High School 2+0+0+7 Tang Zhuo Hao Ray 7 Hwa Chong Institution (7+2)+(0+0) Erick Rodgers 7 Rohrer Ms 7+2+0-0 Adam Roenberg 7 Hudson Montessori School 2-0-0+7 Glenn Goh Rongjie 9 Hwa Chong Insituition 7+2-0-0 Benjamin Lin Ruiyang 1 Hwa Chong Institution (2+0)-0+7 Caylie Scherba 8 Hudson Montessori Middle School 7+2+0+0 Garrett Scherba 7 Hudson Montessori School 7+2+0-0 Nayan Shah 8 Hudson Montessori School 2+7+0+0 Rachel Stewart 7 Mount Olive Middle School (7+2)+0+0 Dylan S. 6 Parker Middle School 7+2+0+0 Katie S 6 Parker Middle School 7+2+0-0 Meghan S. 6 Parker Middle School 7+2+0+0 Nicki S 6 Parker Middle School 7+2+0+0 Jon Tan 8 Hwachong Institution 2+0+0+7 Darren Toh 9 Hwa Chong Institution 0+0+7+2 2+7+0+0 7+0+2+0 Henry Trimpe 7 Hudson Montessori School 7+2-0-0 Anna T. 6 Parker Middle School 2+7+0+0 Scott T 6 Parker Middle School 2+0+0+7 Kathryn V 6 Parker Middle School (2+0)-0+7 Elizabeth Wargo 8 Hudson Montessori School 2+0+0+7 Ang Chong Wei 9 Hwa Chong Institution 7+2-0!+0! 2+7+0+0 7+0!+2^0 Chong Zhi Wei 7 Hwa Chong Insitution 2+0+0+7 Kenneth Ng Yu Wei 7 Hwa Chong Institution 7+2+0+0 Tan Yi Wei 7 Hwa Chong Institution (7+2)+0+0 Abby W. 6 Parker Middle School 2+0+0+7 Han Xiaoxiao 9 Hwa Chong Institution 2+0+0+7 Lim Han Xin 7 Hci 2+0-0+7 Xiong Xingyu 7 Hwa Chong Institution 2+0+0+7 Shaun Lum Yu Xuan 3 Hwa Chong Institution 2+0+0+7 Hshieh Chyi Yan 7 Hwa Chong Intitution 2!+0+0+7 Chan Shen Yee 2 Hwa Chong 7+2+0+0 Lee Jun Yi 8 Hwa Chong Institution 2+0+0+7 Low Kah Yi 9 Hwa Chong Institution 7+2+0+0 Zhou Yifan 3 Hwa Chong Institution 2+0+0+7 Johnny Yeung Chun Yin 7 Hwa Chong Institution 2+0+0+7 Zou Xiang Yu 7 Hwa Chong 7+2+0-0 Xiao Yuting 8 Hwa Chong Institution 2+0+0+7 Ng Soon Zhou 7 Hwa Chong Institution Highschool 2+0+0+7 Yu Zhou 1 Hwa Chong Institution 7+2-0-0 Andre 8 St. Gabes (7+2)+0+0 Anthony 1 Parker 0x0+7+2 Chrissa 6 John F. Kennedy School 7+2+0+0 Jared 6 Parker Middle School 2^(0+0!)+7 NergüL 10 ÖZel Fatih Sultan Lisesi 7+2-0+0 Steven 6 Christ The Divine Techer School 2+0+0+7 Yuanxi 9 Hwa Chong Institution 2+0+0+7 Zhangqiming 3 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.