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: 73

 Solution Name Grade School 70+2+0! Kate Ahrens 7 Mount Olive Middle School 2+0+Sqrt(0!+7!) Chua Cheng Aik 9 Hwa Chong Institution 72-0+0! Neal Amos 10 Brookstone School 70+2+0! Bob Chen 8 Northwest Junior High 72-0+0! Timothy Tay Kai Cheng 8 Hwa Chong Institution 72+0!+0 Paxton Chia 8 Hwachong Institution 0^0+72 Calvin Sim Poh Chuan 12 Hwa Chong Institution (0!)+72+0 Hunter Ciuba 8 Brookstone 72+0+0! Jackie Cuneo 7 Rohrer Ms 2+0+Sqrt(0!+7!) Khu Boon Tat Daren 9 Hwa Chong Institution 72+(0^0) Julia D. 6 Parker Middle School Sqrt(7!+0!)+2+0 Michael Endick 8 Foothill Middle School 70+2+0! Kam Mao Quan Gabriel 7 Hwa Chong Instituition 70+2+0! Chan Tuck Ging 7 Hwa Chong Institution 72+0!+0 Kevin Griese 7 Rohrer Ms 2+Sqrt(0!+0+7!) Wu Zi Hao 9 Hwachong Institution 70+2+0! Nicholas Heng 8 Hwa Chong Institution 72+0!+0 Cara Hudak 8 Hudson Montessori Middle Scholl 70+2+0! Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 72+0^0 Matt H 6 Parker Middle School 70+2+0! Anthony Illiano 7 Rohrer M.S. 72-0+0! Lee Zi Jian 8 Hwa Chong Instituition 72+0!+0 Sim Zhi Jian 8 Hwa Chong Instiution 70+2!+0! Ng Xu Jie 8 Hwa Chong Institution 72+0+0! Lau Wei Jie Jonathan 9 Hwa Chong Institution 72+0!+0 Song Cheng Jun 7 Hwa Chong Instituition 72+0+0! Olivia Kamensky 8 Brookstone School 70+2+0! Szeto Kah Keong 8 Hwa Chong Institution 72+0!+0 Delwin Koh 8 Hwa Chong Institution 72+0^0 Won Cheng Yi Lewis 9 Hwa Chong Institution 2+0+(Sqrt(0!+7!)) Benjamin Low 8 Hwa Chong Institution 72+0!+0 Kelley Mcintire 9 Brookstone 72+0!+0 Jessica M 7 Mount Olive Middle School 72x0!+0! Ng Jun Da Nelson 8 Hwa Chong Instituition 72+0+0! Yuxiao Ning 12 Hoboken High School 72+0!-0 Cam O 6 Parker Middle Shcool 72+0^0 Siobhan O's 6 Parker Middle School 70+2+0! Tang Zhuo Hao Ray 7 Hwa Chong Institution 72+0!+0 Glenn Goh Rongjie 9 Hwa Chong Instituition 72+0!+0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 72+0!-0 Brandi Rusk 7 Rohrer Middle School 72+0!-0 Caylie Scherba 8 Hudson Montessori Middle School 72+0!+0 Selena Starbard 7 Rohrer M.S. 72+0!-0 Rachel Stewart 7 Mount Olive Middle School 72+0^0 Katie S 6 Parker Middle School 70+2+0! Ang Chong Wei 9 Hwa Chong Institution 72+0!+0 Chong Zhi Wei 7 Hwachong 70+2+0! Tan Yi Wei 7 Hwa Chong Institution 72+0^0 Leah W. 6 Parker Middle 70+0!+2 Lim Han Xin 7 Hci 72+0^0 70+2+0! Hshieh Chyi Yan 7 Hwa Chong Institution 70+2+0! Lee Jun Yi 8 Hwa Chong Institution 2+Sqrt(0!+0+7!) Low Kah Yi 9 Hwa Chong Institution 70+2+0! Zhou Yifan 3 Hwa Chong Institution 70+2+0! Zou Xiang Yu 7 Hwa Chong Institution 70+2+(0!) Xiao Yuting 8 Hwa Chong Institution 72+(0!)+0 Ng Soon Zhou 7 Hwa Chong Institution Highschool 70+2+0! Yu Zhou 1 Hwa Chong Institution 70+2+0! Chrissa 6 John F. Kennedy School

Please notify Judy Ann Brown of any errors.