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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 |
| (7-2)!/(0!+0!) | Neal Amos | 10 | Brookstone School |
| (7-0!-0!)!/2 | Bob Chen | 8 | Northwest Junior High |
| (7-0!-0!)!/2 | Timothy Tay Kai Cheng | 8 | Hwa Chong Institution |
| (7-0!-0!)!/2 | Khu Boon Tat Daren | 9 | Hwa Chong Institution |
| (7-0!-0!)!/2 | Erika Grace Davies | 8 | Christ The Divine Teacher |
| Sqrt((7-0!)!/0.2) | Michael Endick | 8 | Foothill Middle School |
| (7-0!-0!)! / 2 | Liu Fangxu | 7 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Kam Mao Quan Gabriel | 7 | Hwa Chong Instituition |
| [(7-0!-0!)!]/2 | Chan Tuck Ging | 7 | Hwa Chong Institution |
| Sqrt(.2^(-0!)*(-0!+7)!) | Wu Zi Hao | 9 | Hwachong Institution |
| (7-0!-0!)!/2 | Lee Zi Jian | 8 | Hwa Chong Instituition |
| (7-0!-0!)!/2! | Ng Xu Jie | 8 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Lau Wei Jie Jonathan | 9 | Hwa Chong Institution |
| (7-0!-0!)!/2 | Tan Song Kai | 8 | Hwa Chong Institution |
| (7-0!-0!)!/2 | Delwin Koh | 8 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Szeto Kah Keong | 8 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Benjamin Low | 8 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Jessica M. | 7 | Mount Olive Middle School |
| (7-0!-0!)!/2 | Ng Jun Da Nelson | 8 | Hwa Chong Instituition |
| (7-2)!/(0!+0!) | Yuxiao Ning | 12 | Hoboken High School |
| ((7-2)!)/(0!+0!) | Ow Zhen Quan | 8 | Hwa Chong Institution |
| (7-0!-0!)!/2 | Tang Zhuo Hao Ray | 7 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Glenn Goh Rongjie | 9 | Hwa Chong Instituition |
| (7-2)!/(0!+0!) | Chong Tjen-Yao | 7 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Tan Yi Wei | 7 | Hwa Chong Institution |
| (7-0!-0!)!/2 | Lim Han Xin | 7 | Hci |
| (7-2)!/(0!+0!) | Lee Jun Yi | 8 | Hwa Chong Institution |
| Sqrt(.2^(-0!)*(-0!+7)!) | Low Kah Yi | 9 | Hwa Chong Institution |
| (7-2)!/(0!+0!) | Zhou Yifan | 3 | Hwa Chong Institution |
| [[7-(0!)-(0!)]!]/2 | Ng Soon Zhou | 7 | Hwa Chong Institution Highschool |
Please notify Judy Ann Brown of any errors.
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