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: 8

 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 2^0+7-0 Neal Amos 10 Brookstone School (2+7)-(0!+0) Collin Andrew 7 Rohrer G. Middle School 2+7-0!+0 Janine A. 6 Parker Middle School (2+7)-0!-0 Nick A 6 Parkermiddleschool 0!+7+(2x0) Anton Baker 6 John-F-Kennedy School 0!+7+(2x0) Jerome Bong 6 J.F.K. School 7+2^0+0 Meghan B 6 Parker Middle School 7+2-0!+0 Bob Chen 8 Northwest Junior High 7+2-0!+0 Timothy Tay Kai Cheng 8 Hwa Chong Institution 2^0+7-0 Calvin Sim Poh Chuan 12 Hwa Chong Institution 7+2^0+0 David C 6 Parker Middle School 7+2-0^0 Troy C 6 Parker Middle School 2^0+0+7 Khu Boon Tat Daren 9 Hwa Chong Institution 7+0+2-(0!) Noah Delius 6 John F. Kennedy School, Berlin, Germany 2-0^0+7 Tran Ha Duong 9 3h, Hwa Chong Institution 7+0!+(2x0) 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 (2^0)!+7+0 Carson Farley 9 Brookstone School 2^0+7+0 Tim Freborg 7 Hudson Montessori 7-0!+2+0 Sam F 6 Parker Middle School 2^0+0+7 Kam Mao Quan Gabriel 7 Hwa Chong Instituition 7+2^0+0 Chan Tuck Ging 7 Hwa Chong Institution 2^0+7+0 Aly G. 6 Parker Middle School 7+2^0+0 Claudia G 6 Parker Middle School 7+2^0+0 James G 6 Parker Middle School 2^0+7+0 J.D. G 6 Parker Middle School 2^0+7+0 Maggie G. 6 Parker Middle School 20^0+7 Wu Zi Hao 9 Hwachong Institution 7+2-(0^0) Nicholas Heng 8 Hwa Chong Institution (2^0)+7+0 Yeo Si Heng 1 Hwa Chong Instituition (7+0!)-2x0 Angelina Hintze 6 John F. Kennedy School (7x2^0)+0! Cara Hudak 8 Hudson Montessori Middle Scholl 2^0+0+7 Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 7+2^0+0 Matt H 6 Parker Middle School 7+0!+(2x0) Olivia H 6 Parker Middle School 2^0+7+0 Peter H 6 Parker Middle School (7-0!)+(2+0) Karen Israel 7 Roher Ms 7+2-0!+0 Lee Zi Jian 8 Hwa Chong Instituition 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 7+0+2^0 Lau Wei Jie Jonathan 9 Hwa Chong Institution 2^0+7+0 Marcus Phoa Junxiong 9 Hwa Chong Institution (High School) 0*2+0!+7 Tan Song Kai 8 Hwa Chong Institution (2x0)+7+0! Olivia Kamensky 8 Brookstone School 7+(0!)+2x0 Szeto Kah Keong 8 Hwa Chong Institution 7+2-0-0! Delwin Koh 8 Hwa Chong Institution 7+2-0^0 Geena K. 6 Parker Middle School 7+0!-0^2 Gannon Lavins 7 Hudson Montessori School 2^0+0+7 7-0^0+2 0/2+7+0! 2/(0!)+7-0! 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 (2-0!)+(0+7) Tori Mcerlean 7 Rohrer Middle School 7+0!+(0*2) Kelley Mcintire 9 Brookstone 7+2-0!+0 Ella Medicus 8 Hudson Montessori School 7+0!+(2x0) Connor M. 6 Parker 7+2-0!-0 Jessica M 7 Mount Olive Middle School 7+2-0!+0 Kelsey M 6 Parker Middle School 7+2-0!-0 Kevin M 6 Parker Middle School 7-0^0+2 Margaret M. 6 Parker Middle School 7+2-0^0 Monie M 6 Parker Middle School 2^0+7+0 Natalie M. 6 Parker Middle School 2^0+7+0 Olivia M 6 Parker Middle School 7+2^0!-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! Em O 6 Parker Middle School 7+0!-0*2 Ow Zhen Quan 8 Hwa Chong Institution 7+2-0!-0 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 7+0+2^0 Glenn Goh Rongjie 9 Hwa Chong Insituition 7+2-0!-0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 2+7-0!-0 Caylie Scherba 8 Hudson Montessori Middle School 7+0+2^0 Nayan Shah 8 Hudson Montessori School 2^(0x0)+7 Ethan Swan 8 Christ The Divine Teacher 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 Jon Tan 8 Hwachong Institution 20^0+7 Chong Tjen-Yao 7 Hwa Chong Institution 2x0+0!+7 Darren Toh 9 Hwa Chong Institution (2^0)-0+7 Ng Jian Tong 9 Hwa Chong Institution (7+0) +2^0 Henry Trimpe 1 Hudson Montessori School 7+2-0^0 Anna T. 6 Parker Middle School 7+2^0+0 Scott T 6 Parker Middle School 2^0 +0+7 Ang Chong Wei 9 Hwa Chong Institution 7+2-0!+0 7+0+2^0 sqrt(2^(7-0!))-0 Chong Zhi Wei 7 Hwachong Institution 7+2^0+0 Kenneth Ng Yu Wei 7 Hwa Chong Institution 7+2^0+0 Tan Yi Wei 7 Hwa Chong Institution 2^0+0+7 Han Xiaoxiao 9 Hwa Chong Institution 2^0+0+7 Lim Han Xin 7 Hci 2-0!+0+7 Shaun Lum Yu Xuan 3 Hwa Chong Institution 2^0+0+7 Hshieh Chyi Yan 7 Hwa Chong Institution 2^0+0+7 Loh Jun Yan 3 Hwa Chong Institution (High School Section) (7+0!)+(2x0) Lee Jun Yi 8 Hwa Chong Institution 20^0+7 Low Kah Yi 9 Hwa Chong Institution 7+2^0+0 Zhou Yifan 3 Hwa Chong Institution 2^0+0+7 Zou Xiang Yu 7 Hwa Chong 7+2-(0!)-0 Xiao Yuting 8 Hwa Chong Institution 7+0+(2^0) 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 (2-0^0)+7 Anthony 6 Parker 2x0+(7+0!) Chrissa 6 John F. Kennedy School 2^0+7-0 Jared 6 Parker Middle School 2^(0+0)+7 NergüL 10 ÖZel Fatih Sultan Lisesi (2*0)+7+0! Steven 6 Christ The Divine Techer School 2x0+0!+7 Yuanxi 9 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.