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: 17

 Solution Name Grade School (2+0!+0!)!-7 Chua Cheng Aik 9 Hwa Chong Institution 2(7+0!)+0! Neal Amos 10 Brookstone School (((2+0!)+0!)!)-7 Goh Bin 9 Hwa Chong Institution [(7+0!)*2]+0! Gina Bossi 7 Rohrer Middle School (7+0!)*2+0! Bryce S. Brown 7 William G Rohrer Middle School 7+(0!+0!)/.2 Bob Chen 8 Northwest Junior High (7+0!)*2+0! Timothy Tay Kai Cheng 8 Hwa Chong Institution 2x(0!+7)+0! Paxton Chia 8 Hwachong Institution (7+0!)x2+0! Kevin D'amico 7 Rohrer Middle School (2+0!+0!)!-7 0!+2x(0!+7) Khu Boon Tat Daren 9 Hwa Chong Institution (7+0!)x2+0! Tran Ha Duong 9 3h, Hwa Chong Institution 2*(7+0!)+0! Michael Endick 8 Foothill Middle School (7+0!)2+0! Tim Freborg 7 Hudson Montessori (7+0!)x2+0! Kam Mao Quan Gabriel 7 Hwa Chong Instituition (2+0!+0!)!-7 Chan Tuck Ging 7 Hwa Chong Institution Sqrt(2^(7+0!))+0! Alaina G 12 L'anse Creuse High School (7+0!)x2+0! 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 (7+0!)x2+0! Cara Hudak 8 Hudson Montessori Middle Scholl (7+0!)*2+0! Lee Zi Jian 8 Hwa Chong Instituion (7+0!)x2+0! Sim Zhi Jian 8 Hwa Chong Instiution (7+0!)*2+0! Ng Xu Jie 8 Hwa Chong Institution (2+0!+0!)!-7 Lau Wei Jie Jonathan 9 Hwa Chong Institution (7+0!)*2+0! Song Cheng Jun 7 Hwa Chong Instituition 2*(7+0!)+0! Tan Song Kai 8 Hwa Chong Institution [2x(7+0!)]+0! Szeto Kah Keong 8 Hwa Chong Institution (7+0!)*2+0! Delwin Koh 8 Hwa Chong Institution (7+0!)2+0! Gannon Lavins 7 Hudson Montessori School [(7+0!)*2]+0! Alexa Lindsay 7 Rohrer Middle School (2+0!+0!)!-7 Benjamin Low 8 Hwa Chong Institution 2(7+0!)+0! Kelley Mcintire 9 Brookstone 2(7+0!)+0! Ella Medicus 8 Hudson Montessori School (7+0!)x2+0! Ian M 6 Parker Middle School (0!+0!+2)!-7 Margaret M. 6 Parker Middle School ((7+0!)x2)+0! Natalie M. 6 Parker Middle School (2+0!+0!)!-7 Ng Jun Da Nelson 8 Hwa Chong Instituition (7+0!)*2+0! Yuxiao Ning 12 Hoboken High School (7+0!)*2+0! Zack O'connell 7 Rohrer Ms 2x(7+0!)+0! Cam O 6 Parker Middle School (7+0!)*2+0! Ow Zhen Quan 8 Hwa Chong Institution 2x(7+0!)+0! Tang Zhuo Hao Ray 7 Hwa Chong Institution (7+0!)x2+0! Benjamin Lin Ruiyang 1 Hwa Chong Institution 2(7+0!)+0! Caylie Scherba 8 Hudson Montessori Middle School (0!+7)2+0! Nayan Shah 8 Hudson Montessori School (0!+7)2+0! Elizabeth Wargo 8 Hudson Montessori School (2!+0!+0!)!-7 Ang Chong Wei 9 Hwa Chong Institution (7+0!)*2+0! Chong Zhi Wei 7 Hwa Chong Insitution ((0!+0!+2)!-7 Tan Yi Wei 7 Hwa Chong Institution [(7+0!)x2]+0! Lim Han Xin 7 Hci (7+0!)*2+0! Chan Shen Yee 4 Hwa Chong Institution [(7+0!)x2]+0! Lee Jun Yi 8 Hwa Chong Institution (2+0!+0!)!-7 Low Kah Yi 9 Hwa Chong Institution (2+0!+0!)!-7 Zhou Yifan 3 Hwa Chong Institution 2x(7+0!)+0! Zou Xiang Yu 7 Hwa Chong Institution [7+(0!)]*2+(0!) Xiao Yuting 8 Hwa Chong Institution [2*[7+(0!)]]+(0!) Ng Soon Zhou 7 Hwa Chong Institution Highschool (7+0!)*2+0! Yu Zhou 1 Hwa Chong Institution (2+0!+0!)!-7 NergüL 10 ÖZel Fatih Sultan Lisesi 2x(7+0!)+0! Yuanxi 9 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.