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: 18

 Solution Name Grade School (7+2)x(0!+0!) Kate Ahrens 7 Mount Olive Middle School (2+0!)(7-0!) Chua Cheng Aik 9 Hwa Chong Institution ((7+0!)+0!)*2 Brian Almand 7 Rohrer Ms (7-0!)x(2+0!) Neal Amos 10 Brookstone School (7+0!+0!)*2 Collin Andrew 7 Rohrer G. Middle School (7+0!+0!)*2 Bryce S. Brown 7 William G Rohrer Middle School (7+2)*(0!+0!) Jamie Caputo 7 Rohrer Middle School (7-0!)(2+0!) Bob Chen 8 Northwest Junior High (7+0!+0!)*2 Timothy Tay Kai Cheng 8 Hwa Chong Institution 2x(0!+0!+7) Paxton Chia 8 Hwachong Institution ((7+0!)+0!)x2 Kevin D'amico 7 Rohrer Middle School 2x(0!+0!+7) Khu Boon Tat Daren 9 Hwa Chong Institution (7+0!+0!)x2 Tran Ha Duong 9 3h, Hwa Chong Institution 2*(7+0!+0!) Michael Endick 8 Foothill Middle School (7+2)x(0!+0!) Kam Mao Quan Gabriel 7 Hwa Chong Instituition 2x(7+0!+0!) Chan Tuck Ging 7 Hwa Chong Institution (7+0!+0!)x2 Maggie G. 6 Parker Middle School 2*(0!+0!+7) Wu Zi Hao 9 Hwachong Institution 2(7+0!+0!) Nicholas Heng 8 Hwa Chong Institution (2+7)(0!+0!) Cara Hudak 8 Hudson Montessori Middle Scholl 2(0!+0!+7) Lim Aik Hwee 9 Hwa Chong Institution (High School Section) (0!+0!+7)x2 Olivia H 6 Parker Middle School (7+0!+0!)*2 Lee Zi Jian 8 Hwa Chong Instituion (7+0!+0!)x2 Sim Zhi Jian 8 Hwa Chong Instiution (7+0!+0!)*2 Ng Xu Jie 8 Hwa Chong Institution 2*(7+0!+0!) Lau Wei Jie Jonathan 9 Hwa Chong Institution 2x(7+0!+0!) Tan Song Kai 8 Hwa Chong Institution (7-0!)x(2+0!) Szeto Kah Keong 8 Hwa Chong Institution (7+0!+0!)*2 Delwin Koh 8 Hwa Chong Institution (7+0!+0!)2 Gannon Lavins 7 Hudson Montessori School [(7+0!)+0!]*2 Alexa Lindsay 7 Rohrer Middle School 2*(0!+0!+7) Benjamin Low 8 Hwa Chong Institution (0!+2)x(7-0!) Sammy Mayall 6 Viewpoint 2(7+0!+0!) Kelley Mcintire 9 Brookstone (0!+0!+7)*2 Ella Medicus 8 Hudson Montessori School (7+2)x(0!+0!) Ian M 6 Parker Middle School 2(7+0!+0!) Jessica M 7 Mount Olive Middle School 2x(7+0!+0!) Margaret M. 6 Parker Middle School (7-0!)x(2+0!) Natalie M. 6 Parker Middle School (7+0!+0!)*2 Olivia M 6 Parker Middle School 2(7+0!+0!) Ng Jun Da Nelson 8 Hwa Chong Instituition (7+0!+0!)*2 Yuxiao Ning 12 Hoboken High School (7+2)x(0!+0!) Cam O 6 Parker Middle School (0!+0!+7)x2 Vanessa O'c 6 Parker Middle School (7+2)*(0!+0!) Ow Zhen Quan 8 Hwa Chong Institution 2x(7+0!+0!) Tang Zhuo Hao Ray 7 Hwa Chong Institution (2+7)*(0!+0!) Nelson Remetz 7 Rohrer Ms (7-0!)*(2+0!) Glenn Goh Rongjie 9 Hwa Chong Insituition (7+2)x(0!+0!) Benjamin Lin Ruiyang 1 Hwa Chong Institution (7+2)x(0!+0!) Benjamin Lin Ruiyang 1 Hwa Chong Institution (0!+0!+7)2 Caylie Scherba 8 Hudson Montessori Middle School (0!+7+0!)2 Nayan Shah 8 Hudson Montessori School 2x(0!+0!+7) Darren Toh 9 Hwa Chong Institution (7+0!+0!)x2 Henry Trimpe 1 Hudson Montessori School (2+0!)x(-0!+7) Ang Chong Wei 9 Hwa Chong Institution (7+0!+0!)*2 Chong Zhi Wei 7 Hwa Chong Insitution (7-0!)*(0!+2) Tan Yi Wei 7 Hwa Chong Institution (7-0!)*(2+0!) Steven Winklosky 6 Christ The Divine Techer School 2x(7+0!+0!) Lim Han Xin 7 Hci 2(0!+0!+7) Shaun Lum Yu Xuan 3 Hwa Chong Institution (7+0!+0!)x2 Hshieh Chyi Yan 7 Hwa Chong Institution (7+2)*(0!+0!) Chan Shen Yee 4 Hwa Chong Institution (2+7)(0!+0!) Lee Jun Yi 8 Hwa Chong Institution 2*(0!+0!+7) Low Kah Yi 9 Hwa Chong Institution (2+0!)x(7-0!) Zhou Yifan 3 Hwa Chong Institution (7+0!+0!)x2 Zou Xiang Yu 7 Hwa Chong Institution [7+(0!)+(0!)]*2 Xiao Yuting 8 Hwa Chong Institution 2*[7+(0!)+(0!)] Ng Soon Zhou 7 Hwa Chong Institution Highschool (2+7)*(0!+0!) Yu Zhou 1 Hwa Chong Institution 2x(7+0!+0!) Yuanxi 9 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.