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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.
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| Solution | Name | Grade | School |
| 2^(7-0!-0!) | Neal Amos | 10 | Brookstone School |
| 2^(7-0!-0!) | Cory Cellucci | 7 | Rohrer Ms |
| 2^(7-0!-0!) | Bob Chen | 8 | Northwest Junior High |
| 2^(7-0!-0!) | Timothy Tay Kai Cheng | 8 | Hwa Chong Institution |
| 2^(7-0!-0!) | Kevin D'amico | 7 | Rohrer Middle School |
| 2^(-0!-0!+7)
(0!+0!)^(-2+7) |
Khu Boon Tat Daren | 9 | Hwa Chong Institution |
| (0!+0!)^(7-2) | Michael Endick | 8 | Foothill Middle School |
| 2^(7-0!-0!) | Bora F. | 12 | L'anse Creuse High School |
| 2^(7-0!-0!) | Kam Mao Quan Gabriel | 7 | Hwa Chong Instituition |
| 2^(7-0!-0!) | Chan Tuck Ging | 7 | Hwa Chong Institution |
| 2^(-0!-0!+7) | Wu Zi Hao | 9 | Hwachong Institution |
| 2^(7-0!-0!) | Dong Huang | 11 | St.Clares |
| 2^(7-0!-0!) | Cara Hudak | 8 | Hudson Montessori Middle Scholl |
| 2^(7-0!-0!) | Lee Zi Jian | 8 | Hwa Chong Instituition |
| 2^(7-0!-0!) | Sim Zhi Jian | 8 | Hwa Chong Instiution |
| 2^(7-0!-0!) | Ng Xu Jie | 8 | Hwa Chong Institution |
| 2^(7-0!-0!) | Lau Wei Jie Jonathan | 9 | Hwa Chong Institution |
| 2^(7-0!-0!) | Song Cheng Jun | 7 | Hwa Chong Instituition |
| 2^(7-0!-0!) | Tan Song Kai | 8 | Hwa Chong Institution |
| 2^(7-0!-0!) | Szeto Kah Keong | 8 | Hwa Chong Institution |
| 2^(7-0!-0!) | Delwin Koh | 8 | Hwa Chong Institution |
| 2^(-0!-0!+7) | Benjamin Low | 8 | Hwa Chong Institution |
| 2^(7-0!-0!) | Ng Jun Da Nelson | 8 | Hwa Chong Instituition |
| 2^(7-0!-0!) | Yuxiao Ning | 12 | Hoboken High School |
| 2^(7-0!-0!) | Ow Zhen Quan | 8 | Hwa Chong Institution |
| 2^(7-0!-0!) | Adam Roenberg | 7 | Hudson Montessori School |
| 2^(7-0!-0!) | Benjamin Lin Ruiyang | 1 | Hwa Chong Institution |
| 2^(7-0!-0!) | Nayan Shah | 8 | Hudson Montessori School |
| 2^(7-0!-0!) | Jeff Spicoli | 7 | Rohrer Ms |
| 2^(7-0!-0!) | Alexa Surmick | 7 | Rohrer Middle School |
| 2^(7-0!-0!) | Andy Tang | 7 | Berry Middle School |
| 2^(7-0!-0!) | Chong Tjen-Yao | 7 | Hwa Chong Institution |
| 2^(7-0!-0!) | Tan Yi Wei | 7 | Hwa Chong Institution |
| 2^(7-0!-0!) | Maung Thet Naing Win | 7 | Hwa Chong Institution |
| 2^(7-0!-0!) | Lim Han Xin | 7 | Hci |
| 2^(-0!-0!+7) | Shaun Lum Yu Xuan | 3 | Hwa Chong Institution |
| 2^(7-0!-0!) | Lee Jun Yi | 8 | Hwa Chong Institution |
| 2^(-0!-0!+7) | Low Kah Yi | 9 | Hwa Chong Institution |
| 2^(7-0!-0!) | Zhou Yifan | 3 | Hwa Chong Institution |
| 2^(7-0!-0!) | Zou Xiang Yu | 7 | Hwa Chong Institution |
| 2^[7-(0!)-(0!)] | Xiao Yuting | 8 | Hwa Chong Institution |
| 2^[7-(0!)-(0!)] | Ng Soon Zhou | 7 | Hwa Chong Institution Highschool |
| (0!+0!)^(7-2) | Yu Zhou | 1 | Hwa Chong Institution |
Please notify Judy Ann Brown of any errors.
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