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: 15

 Solution Name Grade School 7x2+0!-0 Kate Ahrens 7 Mount Olive Middle School (7x2)+0+0! Chua Cheng Aik 9 Hwa Chong Institution 0!+7x2+0 Neal Amos 10 Brookstone School 0^0+(2!x7) Max Yoong Pao Aun 7 Hwa Chong Institution 2x7+0!+0 Janine A. 6 Parker Middle School 7*2+0!+0 Paulina Baumann 7 Rohrer Middle School 7*2+0^0 Justin Boots 6 Parker Middle School 7*2+0!+0 Justen 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 2x7+0!+0 Paxton Chia 8 Hwachong Institution (7x2)+(0!x0!) Calvin Sim Poh Chuan 12 Hwa Chong Institution (0^0)+(7)(2) Hunter Ciuba 8 Brookstone (7*2)+0+0! Jackie Cuneo 7 Rohrer Ms 7x2+0^0 Amy C 6 Parker Middle School 0+0!+(2x7) .2x70+0! Khu Boon Tat Daren 9 Hwa Chong Institution 7x2+0!+0 Tran Ha Duong 9 3h, Hwa Chong Institution 7x2+0^0 Erica D 6 Parker Middle School 0!+0+2*7 Michael Endick 8 Foothill Middle School 2x7+0^0 Kam Mao Quan Gabriel 7 Hwa Chong Instituition 7x2+(0!)+0 Chan Tuck Ging 7 Hwa Chong Institution 2x7+0!+0 Aly G. 6 Parker Middle Shcool 7x2+0!+0 Claudia G 6 Parker Middle School 7x2+0^0 James G 6 Parker Middle School (7+0)x2+0! Maggie G. 6 Parker Middle School 2(7) + (0^0) Nicholas Heng 8 Hwa Chong Institution 7x2+0!-0 Yeo Si Heng 8 Hwa Chong Instituition (2x7)+0!-0 Cara Hudak 8 Hudson Montessori Middle Scholl (7x2)+0!+0 Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 7*2+0!-0 Lee Zi Jian 8 Hwa Chong Instituion 7x2+0^0 Sim Zhi Jian 8 Hwa Chong Instiution (7x2)+(0^0) Chow Zheng Jie 9 Hwa Chong Institution 7*2+0!+0 Ng Xu Jie 8 Hwa Chong Institution 2*7+0!+0 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 (2x7)+(0!)+0 Olivia Kamensky 8 Brookstone School (7*2)+(0!+0) Tim Kenna 7 Rohrer Middle School 7x2+(0!)-0 Szeto Kah Keong 8 Hwa Chong Institution 7*2+0+0! Delwin Koh 8 Hwa Chong Institution 2x7+0!-0 Gannon Lavins 7 Hudson Montessori School 7x2+(0!x0!) Won Cheng Yi Lewis 9 Hwa Chong Institution 2(7)+0!+0 Benjamin Low 8 Hwa Chong Institution 7*2+0^0 Amanda L. 6 Parker Middle School 7*2+0!+0 Kelley Mcintire 9 Brookstone 7*2+0+0! Ella Medicus 8 Hudson Montessori School 7x2+0!+0 Timothy Ng Yi Ming 8 Hwa Chong Institution 2x7+0+0! Connor M. 6 Parker 7*2+0!+0 Jessica M 7 Mount Olive Middle School (7x2)+(0^0) Margaret M. 6 Parker Middle School 7x2+0^0 Monie M 6 W.S. Parker Middle School 7x2+0^0 Natalie M. 6 Parker Middle School 7*2-0+0! Olivia M 6 Parker Middle School (7x2)+0!^0 Ng Jun Da Nelson 8 Hwa Chong Instituition 2*7+0!+0 Yuxiao Ning 12 Hoboken High School (2x7)+0!-0 Cam O 6 Parker Middle School (7x2)+(0^0) Sio O 6 Parker Middle School (7x2)+0^0 Siobhan O 6 Parker Middle School (2*7+0!)*0! Ow Zhen Quan 8 Hwa Chong Institution 7x2+0+0! Tang Zhuo Hao Ray 7 Hwa Chong Institution (2*7)+(0!+0) Nelson Remetz 7 Rohrer Ms 7x2+0!+0 Adam Roenberg 7 Hudson Montessori School 2*7+0!+0 Glenn Goh Rongjie 9 Hwa Chong Insituition (7x2)+0!+0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 7x2+0!-0 Caylie Scherba 8 Hudson Montessori Middle School (2x7)-0+0! Nayan Shah 8 Hudson Montessori School 0^0+2x7 Benji Shields 11 Model Secondary School For The Deaf 7x2+0^0 Katie S 6 Parker Middle School (7x2)+0!+0 Henry Trimpe 1 Hudson Montessori School (7x2)-0+0! Scott Tully 6 Parker Middle School 2x7+0+0! Ang Chong Wei 9 Hwa Chong Institution (7*2)+0!-0 Chong Zhi Wei 7 Hwa Chong Insitution 7*2+0!-0 Tan Yi Wei 7 Hwa Chong Institution 7*2+0^0 Andrew Weindel 7 Rorer M.S. 7*2+0!-0 Steven Winklosky 6 Christ The Divine Techer School 2x7+0!+0 Lim Han Xin 7 Hci 7x2+0!+0 Shaun Lum Yu Xuan 3 Hwa Chong Institution (7x2)+0^0 Hshieh Chyi Yan 7 Hwa Chong Institution 7*2+0!+0 Chan Shen Yee 4 Hwa Chong Institution (7x2)+0!+0 Lee Jun Yi 8 Hwa Chong Institution 7x2+0+0! Zhou Yifan 3 Hwa Chong Institution 2x(7+0!)-0! Zou Xiang Yu 7 Hwa Chong Institution 7*2+(0!)+0 Xiao Yuting 8 Hwa Chong Institution 2*7+(0!)+0 Ng Soon Zhou 7 Hwa Chong Institution Highschool 7*2+0^0 Yu Zhou 1 Hwa Chong Institution 0!+7x2+0 Chrissa 6 John F. Kennedy School 2(0+7)+0! Yuanxi 9 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.