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: 50

 Solution Name Grade School 7^2+0!+0 Chua Cheng Aik 9 Hwa Chong Institution 7^2+0!+0 Neal Amos 10 Brookstone School 7^2+0!+0 Collin Andrew 7 Rohrer G. Middle School 70-20 Marianne A 6 Parker Middle School 70-20 Johnny 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 (7^2)+0!+0 Paxton Chia 8 Hwachong Institution 7^2+0^0 Calvin Sim Poh Chuan 12 Hwa Chong Institution 70-20 Hunter Ciuba 8 Brookstone 7^2+0!+0 Kelly Clark 7 Rohrer Middle School 70-20 Nate C. 6 Parker Middle School 7^2+0!+0 (7^2+0!)/0! Khu Boon Tat Daren 9 Hwa Chong Institution 7^2+0!+0 Michael Endick 8 Foothill Middle School 70-20 Sophie Farah 8 Hudson Montessori Middle School 70-20 Tim Freborg 7 Hudson Montessori 70-20 Sam F 6 Parker Middle School 70-20 Zack F 6 Parker Middle School 70-20 Kam Mao Quan Gabriel 7 Hwa Chong Instituition 7^2+0!+0 Chan Tuck Ging 7 Hwa Chong Institution 70-20 Maggie G. 6 Parker Middle School (7^2)+(0^0) Nicholas Heng 8 Hwa Chong Institution -20+70 Angelina Hintze 6 John F. Kennedy School 7^2+0!+0 Cara Hudak 8 Hudson Montessori Middle Scholl 70-20 Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 70-20 Matt H 6 Parker Middle School 7^2+0^0 Melissa H 6 Parker Middle School 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 70-20 Ng Xu Jie 8 Hwa Chong Institution 70-20 Tan Wei Jie 7 Hwa Chong Institution (7+0)^2+0! Lau Wei Jie Jonathan 9 Hwa Chong Institution 70-20 Marcus Phoa Junxiong 9 Hwa Chong Institution (High School) 7^2+0^0 Evan J. 6 Parker Middle School 7^2+0!+0 70-20 Tan Song Kai 8 Hwa Chong Institution 7^2+0!+0 Szeto Kah Keong 8 Hwa Chong Institution 7^2+0!+0 Delwin Koh 8 Hwa Chong Institution 70-20 7^2+0!+0 Won Cheng Yi Lewis 9 Hwa Chong Institution 7^2-0+0! Benjamin Low 8 Hwa Chong Institution 70-20 Ashley L 6 Parker Middle School 70-20 Luke Mansour 9 Brookstone School (7^2)+0!+0 70-20 Hannah Marshall 7 M.O.M.S. 7^2+0!+0 Kelley Mcintire 9 Brookstone 7^2+0^0 Nina Mielcarz 7 Rohrer Middle School 70-20 Timothy Ng Yi Ming 8 Hwa Chong Institution 7^2+0!+0 Tomas Moreno 9 Alamo Heights High School 70-20 Chris Mulroy 7 Rohrer Ms 70-20 Ian M 6 Parker Middle School 70-20 Jessica M. 7 Mount Olive 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 Shcool 70-20 Siobhan O's 6 Parker Middle School 70-20 Nigel Poh 9 Hwa Chong Institution (7^2)+0!*0! Ow Zhen Quan 8 Hwa Chong Institution 7^2+0!-0 Tang Zhuo Hao Ray 7 Hwa Chong Institution 70-20 Erick Rodgers 7 Rohrer Ms 7^2+0!+0 Glenn Goh Rongjie 9 Hwa Chong Insituition (7^2)+0!+0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 70-20 Caylie Scherba 8 Hudson Montessori Middle School 70-20 Nayan Shah 8 Hudson Montessori School 70-20 Ang Wee Shuen 1 Hwa Chong Institution 70-20 Rachel Stewart 7 Mount Olive Middle School 70-20 Bobby S 6 Parker Middle School 70-20 Dylan S. 6 Parkermiddle School 7^2+0^0 Katie S 6 Parker Middle School 70-20 Ng Jian Tong 9 Hwa Chong Institution 7^2+0^0 Megan Walter 7 Rohrer Ms 70-20 Ang Chong Wei 9 Hwa Chong Institution 7^2+0+0! Chong Zhi Wei 7 Hwachong 7^2+0!+0 Tan Yi Wei 7 Hwa Chong Institution 7^2+0!+0 Jerrold Au Ying Xian 9 Hwa Chong Institution 7^2+0!+0 Lim Han Xin 7 Hci 70-20 Xiong Xingyu 7 Hwa Chong Institution 70-20 Hshieh Chyi Yan 7 Hwa Chong Institution 7^2+(0+0)! Lee Jun Yi 8 Hwa Chong Institution 7^2+0!-0 Zhou Yifan 3 Hwa Chong Institution 70-20 Zou Xiang Yu 7 Hwa Chong Institution 7^2+(0!)-0 Xiao Yuting 8 Hwa Chong Institution 70-20 Ng Soon Zhou 7 Hwa Chong Institution Highschool 70-20 Chrissa 6 John F. Kennedy School 70-20 Jared 6 Parker Middle School 70-20 Marissa 7 Mount Olive Middle School

Please notify Judy Ann Brown of any errors.