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: 5

 Solution Name Grade School 7+0-2+0 Kate Ahrens 7 Mount Olive Middle School 7+0+0-2 Chua Cheng Aik 9 Hwa Chong Institution 7-2+0+0 Neal Amos 10 Brookstone School 7-2+0+0 Janine A. 6 Parker Middle School 7-2+0+0 Khrysta A-H 6 Parker Middle School 0+0+7-2 Marianne A 6 Parker Middle School 7.0-2.0 Nick A 6 Paker Middle School (0x0)+7-2 Nicole A. 6 Parker Middle School 7-2+0+0 Anton Baker 6 John-F-Kennedy School 7-2+0+0 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 7-2-00 Karen B. 6 Parker Middle School 7-2+0.0 Meghan B 6 Parker Middle School 7-2+0+0 Spencer B 6 Parker Middle School 7-2+0+0 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+0-0 7-2x(0^0) Calvin Sim Poh Chuan 12 Hwa Chong Institution 7-2+0+0 Amy C 6 Parker Middle School 7-2-0-0 David C 6 Parker Middle School 7-2+0+0 Ryan C. 6 Parker Middle School 7-2+0+0 Troy C 6 Parker Middle School -2+0+0+7 Sqrt(7+2)+0!+0! 7-0-2/0! Khu Boon Tat Daren 9 Hwa Chong Institution 0x0-2+7 Noah Delius 6 John F. Kennedy School, Berlin, Germany 7-0-0-2 Tran Ha Duong 9 3h, Hwa Chong Institution 7-2+0+0 David D 6 Parker Middle School (7-2)+(0+0) Julia D. 6 Parker Middle School (7+0)-2+0 Mae D 6 Parker Middle School 7-2+0+0 Michael D. 6 Parker Middle School 0!+0!+Sqrt(2+7) Michael Endick 8 Foothill Middle School -2+0+0+7 Lim Yu Sheng Fabian 9 Hwa Chong Institution (7-0!)-(2-0!) Mark Frasco 1 Rohrer Ms 7-2-0-0 Tim Freborg 7 Hudson Montessori 7-2+0+0 Nicholas F. 6 Parker Middle School 7-2-0+0 Sam F 6 Parker 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 (7-2)+0+0 Claudia G 6 Parker Middle School 7-2+0+0 Aly G. 6 Parker Middle School 7-2+0+0 James G 6 Parker Middle School 7-2+0+0 J.D. G 6 Parker Middle School -2+0+0+7 Wu Zi Hao 9 Hwachong Institution 7-2+0+0 Maggie G. 6 Parker Middle School 7-2-0-0 Nicholas Heng 8 Hwa Chong Institution 7-2-0-0 Yeo Si Heng 8 Hwa Chong Instituition (7-2)+0+0 Angelina Hintze 6 John F. Kennedy School 7-2-0-0 Kimber Holmes 12 Model Secondary School For The Deaf 7-2+0+0 Cara Hudak 8 Hudson Montessori Middle Scholl 7-0-0-2 Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 7-2-0-0 Jared H 6 Parker Middle School 7-2+0+0 Matt H 6 Parker Middle School 7-2+0+0 Peter H 6 Parker Middle School 7-2-0-0 Lee Zi Jian 8 Hwa Chong Instituition 7-2-0!+0! 7-2-0+0 7-2-(0+0) Sim Zhi Jian 8 Hwa Chong Instituition 7-2+0-0 Chow Zheng Jie 1 Hwa Chong Institution 7-2-(0+0) Ng Xu Jie 8 Hwa Chong Institution 07-02 Tan Wei Jie 7 Hwa Chong Institution 7-2-0-0 Lau Wei Jie Jonathan 9 Hwa Chong Institution 7-2+0+0 Marcus Phoa Junxiong 9 Hwa Chong Institution (High School) [7-2]+0+0 Tim J. 6 Parker Middle School 7* 0^0-2 Tan Song Kai 8 Hwa Chong Institution (7+0+0)-2 7-2+0+0 Olivia Kamensky 8 Brookstone School 7-2-0-0 Szeto Kah Keong 8 Hwa Chong Institution 7-2-(0+0) Delwin Koh 8 Hwa Chong Institution 7.0-2.0 Geena K. 6 Parker Middle School 7-2+0+0 Sean Lai 8 Hwa Chong Institution 7-2-0-0 Gannon Lavins 7 Hudson Montessori School 7-0-0-2 Sqrt(2+7)+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 Hannah Marshall 7 M.O.M.S. 7-2+0+0 Luke Mansour 9 Brookstone School 7.0-2.0 Yeo Soon Kiat Matthew 9 Hwa Chong Institution 7-2+0+0 Kelley Mcintire 9 Brookstone 7-2+0+0 Ella Medicus 8 Hudson Montessori School 7-2-0-0 Timothy Ng Yi Ming 8 Hwa Chong Institution 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 7-2-0-0 Kevin M 6 Parker Middle School 7-2+0+0 Margaret M. 6 Parker Middle School 7-2+0-0 Monie M 6 Parker Middle School 7-2+0+0 Natalie M. 6 Parker Middle School 7-2+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 Brendan N 6 Parker Middle School 7-2+0-0 Cam O 6 Parker Middle School 7-2+0+0 Em O 6 Parkermidleschool 7-2+(0+0) Sio O 6 Parker Middle School 7-2+0+0 Vanessa O'c 6 Parker Middle School 7-2-0-0 Andy Chan Boon Pang 8 Hwa Chong Institution (7-2)+(0+0) Janey Perry 7 Rohrer Ms 7-2+0-0 Ow Zhen Quan 8 Hwa Chong Institution 7-2-0-0 Tang Zhuo Hao Ray 7 Hwa Chong Institution 7-2+0+0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 7-2+0+0 Caylie Scherba 8 Hudson Montessori Middle School 7-2+0+0 Nayan Shah 8 Hudson Montessori School 7-2+0+0 Alivia Spinozzi 7 Rorher Middle School 7-2+0+0 Rachel Stewart 7 Mount Olive Middle School 7-2+0+0 Alexander S 6 Parker Middle School 7-2+0+0 Bobby S 6 Parker 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 -2-0-0+7 Darren Toh 9 Hwa Chong Institution (7-2)-0-0 Ng Jian Tong 9 Hwa Chong Institution 0x0-2+7 Mayank Totloor 8 M.W.L.S.S 7-2+0+0 Henry Trimpe 8 Hudson Montessori School 7-2-0-0 Anna T. 6 Parker Middle School 7-2+0-0 Sarah T 6 Parker Middle School 7-2-0-0 Scott T. 6 Parker Middle School 7+0+0-2 Kathryn V 6 Parker Middle School -2+0+0+7 Ang Chong Wei 9 Hwa Chong Institution 7-0-2-0 Chong Zhi Wei 7 Hwa Chong Insitution 7-2+0+0 Kenneth Ng Yu Wei 7 Hwa Chong Institution 7-2-0-0 Tan Yi Wei 7 Hwa Chong Institution 7-2-0-0 Dillon Wooster 5 Longfellow (7-2)+0+0 Abby W. 6 Parker Middle School 7-2+0+0 Leah W 6 Parker Middle School -2+0+0+7 Han Xiaoxiao 9 Hwa Chong Institution 7-0-0-2 Lim Han Xin 7 Hci 7-2+0+0 Xiong Xingyu 7 Hwa Chong Institution -2+0+0+7 Shaun Lum Yu Xuan 3 Hwa Chong Institution 7-0-0-2 Hshieh Chyi Yan 1 Hwa Chong Institution -2+0+0+7 Loh Jun Yan 3 Hwa Chong Institution (High School Section) 7-2+0+0 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 Chong Hou Yin 9 Hwa Chong Institution -2+0+0+7 Zou Xiang Yu 7 Hwa Chong Institution 7-2-0-0 Xiao Yuting 8 Hwa Chong Institution 7-0-0-2 Ng Soon Zhou 7 Hwa Chong Institution Highschool 7-2-0-0 Yu Zhou 1 Hwa Chong Institution 7-2-0-0 Andre 8 St. Gabes (7-2)+0+0 Anthony 6 Parker 0x0+7-2 Chrissa 6 John F. Kennedy School 7-2+0+0 Jared 6 Parker Middle School 7-2-0!+0! Kelsey M 6 Parker Middle School 7-2+0-0 Steven 6 Christ The Divine Techer School -2+0+0+7 Yuanxi 9 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.