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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 |
| 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.
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