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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 |
| 70-2+0 | Kate Ahrens | 7 | Mount Olive Middle School |
| -2-0!+Sqrt(0!+7!) | Chua Cheng Aik | 9 | Hwa Chong Institution |
| 70-2-0 | Neal Amos | 10 | Brookstone School |
| 70-2-0 | Morgan Batson | 9 | Brookstone School |
| 70-2-0 | Johnny B. | 6 | Parker Middle School |
| 70-2-0 | Cory Cellucci | 7 | Rohrer Ms |
| 70-2+0 | Brandon Cepas | 7 | Rohrer Ms |
| 70-2-0 | Bob Chen | 8 | Northwest Junior High |
| 70-2-0 | Timothy Tay Kai Cheng | 8 | Hwa Chong Institution |
| -2-0!+Sqrt(0!+7!)
70+0-2 (70-2)/0! |
Khu Boon Tat Daren | 9 | Hwa Chong Institution |
| 70-2+0 | Michael Endick | 8 | Foothill Middle School |
| 70-2-0 | Tim Freborg | 7 | Hudson Montessori |
| 70-2-0 | Kam Mao Quan Gabriel | 7 | Hwa Chong Instituition |
| 70-0-2 | Chan Tuck Ging | 7 | Hwa Chong Institution |
| -2-0!+Sqrt(0!+7!) | Wu Zi Hao | 9 | Hwachong Institution |
| 70-2-0 | Nicholas Heng | 8 | Hwa Chong Institution |
| 70-2+0 | Yeo Si Heng | 8 | Hwa Chong Instituition |
| 70-2-0 | Cara Hudak | 8 | Hudson Montessori Middle Scholl |
| 70-2-0 | Lim Aik Hwee | 9 | Hwa Chong Institution (High School Section) |
| 70-2+0 | Matt H | 6 | Parker Middle School |
| 70-2-0 | Lee Zi Jian | 8 | Hwa Chong Instituition |
| 70-2+0 | Sim Zhi Jian | 8 | Hwa Chong Instiution |
| 70-2-0 | Ng Xu Jie | 8 | Hwa Chong Institution |
| 70-02 | Tan Wei Jie | 7 | Hwa Chong Institution |
| 70-2+0 | Lau Wei Jie Jonathan | 9 | Hwa Chong Institution |
| 70-2+0 | Marcus Phoa Junxiong | 9 | Hwa Chong Institution (High School) |
| 70-2-0 | Tan Song Kai | 8 | Hwa Chong Institution |
| 70-2-0 | Szeto Kah Keong | 8 | Hwa Chong Institution |
| 70-2-0 | Delwin Koh | 8 | Hwa Chong Institution |
| 70-02 | Carolina Kohn | 9 | Mssd |
| 70-2+0 | Won Cheng Yi Lewis | 1 | Hwa Chong Institution |
| -2-0!+(Sqrt(0!+7!)) | Benjamin Low | 8 | Hwa Chong Institution |
| 70-2+0 | Ashley L | 6 | Parker Middle School |
| 70-2+0 | Luke Mansour | 9 | Brookstone School |
| 70-2+0 | Hannah Marshall | 7 | M.O.M.S. |
| 70-02 | Timothy Ng Yi Ming | 8 | Hwa Chong Institution |
| 70-2+0 | Ian M | 6 | Parker Middle School |
| 70-2-0 | Jessica M | 7 | Mount Olive Middle School |
| 70-2+0 | Ng Jun Da Nelson | 8 | Hwa Chong Instituition |
| 70-2-0 | Yuxiao Ning | 12 | Hoboken High School |
| 70-2-0 | Tang Zhuo Hao Ray | 7 | Hwa Chong Institution |
| 70-2-0 | Glenn Goh Rongjie | 9 | Hwa Chong Instituition |
| 70-2-0 | Benjamin Lin Ruiyang | 1 | Hwa Chong Institution |
| 70-2+0 | Alivia Spinozzi | 7 | Rorher Middle School |
| 70-2+0 | Katie S | 6 | Parker Middle School |
| 70-2+0 | Ang Chong Wei | 9 | Hwa Chong Institution |
| 70-2+0 | Kenneth Ng Yu Wei | 7 | Hwa Chong Institution |
| 70-2-0 | Tan Yi Wei | 7 | Hwa Chong Institution |
| 70-2-0 | Lim Han Xin | 7 | Hci |
| 70-2+0 | Xiong Xingyu | 7 | Hwa Chong Institution |
| 70-2-0 | Hshieh Chyi Yan | 7 | Hwa Chong Institution |
| 70-2+0 | Lee Jun Yi | 8 | Hwa Chong Institution |
| -2-0!+Sqrt(0!+7!) | Low Kah Yi | 9 | Hwa Chong Institution |
| 70-2-0 | Zhou Yifan | 3 | Hwa Chong Institution |
| 70-0-2 | Zou Xiang Yu | 7 | Hwa Chong Institution |
| 70-2-0 | Xiao Yuting | 8 | Hwa Chong Institution |
| 70-2-0 | Ng Soon Zhou | 7 | Hwa Chong Institution Highschool |
| 70-2-0 | Yu Zhou | 1 | Hwa Chong Institution |
| 70-2-0 | Alicia Z. | 6 | Parker Middle School |
| 70-2+0 | Chrissa | 6 | John F. Kennedy School |
| 70-2.0 | Nikki | 6 | Parker Middle School |
Please notify Judy Ann Brown of any errors.
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