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: 27

 Solution Name Grade School 20+7+0 Kate Ahrens 7 Mount Olive Middle School 20+0+7 Chua Cheng Aik 9 Hwa Chong Institution 27+0+0 Neal Amos 10 Brookstone School 20+7+0 Collin Andrew 7 Rohrer G. Middle School 20+7-0 Max Yoong Pao Aun 7 Hwa Chong Institution 20+7-0 27+0-0 Morgan Batson 9 Brookstone School 27+0-0 Jerome Bong 1 J.F.K. School 27-0!+0! Bob Chen 8 Northwest Junior High 20+7-0 Timothy Tay Kai Cheng 8 Hwa Chong Institution 20+0+7 Paxton Chia 8 Hwachong Institution 7.0+20 27+0*0 Calvin Sim Poh Chuan 12 Hwa Chong Institution 27+0-0 Hunter Ciuba 8 Brookstone 20+0+7 Amber Coleman 9 Brookstone High School 20-0+7 Khu Boon Tat Daren 9 Hwa Chong Institution 27+0+0 27x0^0 Tran Ha Duong 9 3h, Hwa Chong Institution 27+0+0 Michael Endick 8 Foothill Middle School 20+0+7 Lim Yu Sheng Fabian 9 Hwa Chong Institution 20+0+7 Kam Mao Quan Gabriel 7 Hwa Chong Instituition 20+7+0 Chan Tuck Ging 7 Hwa Chong Institution 27-0!+0! Maggie G. 6 Parker Middle School 20+0+7 Wu Zi Hao 9 Hwachong Institution 27+0+0 Nicholas Heng 8 Hwa Chong Institution 27+0+0 Yeo Si Heng 8 Hwa Chong Instituition 7+20+0 Angelina Hintze 6 John F. Kennedy School 27-0-0 27+0!-0! Cara Hudak 8 Hudson Montessori Middle Scholl 20+0+7 Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 20+7-0 Matt H 6 Parker Middle School 20+7-0 Lee Zi Jian 8 Hwa Chong Instituition 20+7+0 Sim Zhi Jian 8 Hwa Chong Instiution 7+20+0 Chow Zheng Jie 9 Hwa Chong Institution 27+0+0 Ng Xu Jie 8 Hwa Chong Institution 20+07 Tan Wei Jie 7 Hwa Chong Institution 20+7+0 Lau Wei Jie Jonathan 9 Hwa Chong Institution 20+7+0 Marcus Phoa Junxiong 9 Hwa Chong Institution (High School) 20+7+0 Olivia Kamensky 8 Brookstone School 27*0!+0 27+0+0 Tan Song Kai 8 Hwa Chong Institution 27-0-0 Szeto Kah Keong 8 Hwa Chong Institution 27-0-0 Delwin Koh 8 Hwa Chong Institution 20+7+0 27+0+0 Won Cheng Yi Lewis 9 Hwa Chong Institution 20+0+7 Benjamin Low 8 Hwa Chong Institution 27+0+0 Ashley L 6 Parker Middle School 27+0+0 Luke Mansour 9 Brookstone School 20+7+0 William Mathews 6 John F. Kenedy School 27+0+0 Kelley Mcintire 9 Brookstone 27-0-0 Timothy Ng Yi Ming 8 Hwa Chong Institution 27+0+0 Chris Mulroy 7 Rohrer Ms 20+7-0 27+0+0 Ankit M 6 Parker Middle School 27+0+0 Ian M 6 Parker Middle School 27-0-0 Jessica M 7 Mount Olive Middle School 27+0+0 Margaret M. 6 Parker Middle School 20+0+7 Natalie M. 6 Parker Middle School 20+7^0! Ng Jun Da Nelson 8 Hwa Chong Instituition 20+7+0 Yuxiao Ning 12 Hoboken High School 27+0-0 Cam O 6 Parker Middle School 27+0+0 Vanessa O'c 6 Parker Middle School 27+0+0 Ow Zhen Quan 8 Hwa Chong Institution 27-0-0 Tang Zhuo Hao Ray 7 Hwa Chong Institution 20+0+7 Glenn Goh Rongjie 9 Hwa Chong Insituition 27-0-0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 27+0+0 Caylie Scherba 8 Hudson Montessori Middle School 27-0-0 Nayan Shah 8 Hudson Montessori School 27+0+0 Rachel Stewart 7 Mount Olive Middle School 27+0+0 Drew Sumner 11 Model Secondary School For The Deaf 20+7+0 Katie S 6 Parker Middle School 20+0+7 Darren Toh 9 Hwa Chong Institution 20+0+7 Ang Chong Wei 9 Hwa Chong Institution 20-0+7 Chong Zhi Wei 7 Hwa Chong Insitution 27+0+0 Kenneth Ng Yu Wei 7 Hwa Chong Institution 27-0-0 Tan Yi Wei 7 Hwa Chong Institution 20+0+7 Lim Han Xin 7 Hci 27+0+0 Xiong Xingyu 7 Hwa Chong Institution 20-0+7 Shaun Lum Yu Xuan 3 Hwa Chong Institution 20+0+7 Hshieh Chyi Yan 7 Hwa Chong Institution 20+0+7 Chan Shen Yee 4 Hwa Chong Institution 27-0-0 Lee Jun Yi 8 Hwa Chong Institution 20+0+7 Low Kah Yi 9 Hwa Chong Institution 20+7+0 Zhou Yifan 3 Hwa Chong Institution 27-0-0 Zou Xiang Yu 7 Hwa Chong Institution 27+0+0 Xiao Yuting 8 Hwa Chong Institution 27+0+0 Ng Soon Zhou 7 Hwa Chong Institution Highschool 20+0+7 Yu Zhou 1 Hwa Chong Institution 27-0-0 Andre 8 St. Gabes 20+7-0 Chrissa 6 John F. Kennedy School 27-0+0 Grace 7 Mount Olive Middle School 20+7.0 Jared 6 Parker Middle School 20+7+0 Marissa 7 Mount Olive Middle School 20-(0-7) NergüL 10 ÖZel Fatih Sultan Lisesi

Please notify Judy Ann Brown of any errors.