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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*0!+0!+7 | Merime Ahmed | 11 | Mssd |
| 7+2+0!+0 | Kate Ahrens | 7 | Mount Olive Middle School |
| 2+0!+0+7 | Chua Cheng Aik | 9 | Hwa Chong Institution |
| 7+2+0^0 | Neal Amos | 10 | Brookstone School |
| (7+2)+(0!+0) | Janine A. | 6 | Parker Middle School |
| 2+7+0!+0 | Anton Baker | 6 | John-F-Kennedy School |
| 7+2-0+0! | Bob Chen | 8 | Northwest Junior High |
| 7+2+0!-0 | Timothy Tay Kai Cheng | 8 | Hwa Chong Institution |
| 2+0!+0+7 | Paxton Chia | 8 | Hwachong Institution |
| (7+2)+(0!-0) | Trace Chon | 9 | Christian High School |
| 7+2+(0^0) | Calvin Sim Poh Chuan | 12 | Hwa Chong Institution |
| 0^0+2+7 | Hunter Ciuba | 8 | Brookstone |
| 7+2+0^0 | David C | 6 | Parker Middle School |
| 2+0!+0+7 | Khu Boon Tat Daren | 9 | Hwa Chong Institution |
| 7+0+2+(0!) | Noah Delius | 6 | John F. Kennedy School, Berlin, Germany |
| 2+0^0+7 | Tran Ha Duong | 9 | 3h, Hwa Chong Institution |
| 7+2+(2^0) | Ahmed Dyaa | 12 | Maali El Salam |
| 7+2+0^0 | Erica D | 6 | Parker Middle School |
| (2+7)+0+0! | Mae D | 6 | Parker Middle School |
| 2+(0+0)!+7 | Michael Endick | 8 | Foothill Middle School |
| 2+0^0+7 | Lim Yu Sheng Fabian | 9 | Hwa Chong Institution |
| 7+2+0!-0 | Tim Freborg | 7 | Hudson Montessori |
| 7+2+0!+0 | Sam F | 6 | Parker Middle School |
| 0^0+7+2 | Zack F | 6 | Parker Middle School |
| 2+7+0^0 | Kam Mao Quan Gabriel | 7 | Hwa Chong Instituition |
| 7+2+(0!)+0 | Chan Tuck Ging | 7 | Hwa Chong Institution |
| 7+2+0!+0 | Michael Goldstein | 9 | Alamo Heights High School |
| 2+7+0!+0 | Aly G. | 6 | Parker Middle Shcool |
| 0!+7+2x0! | Maggie G. | 6 | Parker Middle School |
| 2+0!+0+7 | Wu Zi Hao | 9 | Hwachong Institution |
| 7+2+(0^0) | Nicholas Heng | 8 | Hwa Chong Institution |
| (7+2)+0!-0 | Angelina Hintze | 6 | John F. Kennedy School |
| 2+0!+0+7 | Cara Hudak | 8 | Hudson Montessori Middle Scholl |
| 2+0!+0+7 | Lim Aik Hwee | 9 | Hwa Chong Institution (High School Section) |
| 7+2+0!+0 | Lee Zi Jian | 8 | Hwa Chong Instituion |
| 7+2+0^0 | Sim Zhi Jian | 8 | Hwa Chong Instiution |
| 7+2+(0^0) | Chow Zheng Jie | 9 | Hwa Chong Institution |
| 7+2+0^0 | Ng Xu Jie | 8 | Hwa Chong Institution |
| 7+2+0!+0 | Lau Wei Jie Jonathan | 9 | Hwa Chong Institution |
| 0^0+7+2 | Marcus Phoa Junxiong | 9 | Hwa Chong Institution (High School) |
| 0^0+2+7 | Tim J. | 6 | Parker Middle School |
| 7+2+0!+0 | Tan Song Kai | 8 | Hwa Chong Institution |
| (7+2)+0!+0 | Olivia Kamensky | 8 | Brookstone School |
| 7+2+(0!)-0 | Szeto Kah Keong | 8 | Hwa Chong Institution |
| 7+2+0^0 | Delwin Koh | 8 | Hwa Chong Institution |
| 7+2+0^0 | Geena K. | 6 | Parker Middle School |
| 2/(0!)+7+0!
7+0^0+2 |
Won Cheng Yi Lewis | 9 | Hwa Chong Institution |
| (2!+0!)+0+7 | Benjamin Low | 8 | Hwa Chong Institution |
| 2+7+0!-0 | William Mathews | 6 | John F. Kenedy School |
| 2!+7+0!+0 | Kelley Mcintire | 9 | Brookstone |
| (2+0!)-0+7 | Ella Medicus | 8 | Hudson Montessori School |
| 0^0+7+2 | Brendan M. | 6 | Parker Middle School |
| 7+2+0!+0 | Connor M. | 6 | Parker |
| 7+2+0+0! | Jessica M | 7 | Mount Olive Middle School |
| 2+7+0!+0 | Margaret M. | 6 | Parker Middle School |
| 0^0+2+7 | Monie M | 6 | Parker Middle School |
| 0^0+2+7 | Natalie M. | 6 | Parker Middle School |
| 2+7-0+0! | Olivia M | 6 | Parker 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 | Cam O | 6 | Parker Middle School |
| (7+0^0)+2 | Sio O | 6 | Parker Middle School |
| (2+0!)+(0!*7) | Janey Perry | 7 | Rohrer Ms |
| 2+0^0+7 | Nigel Poh | 9 | Hwa Chong Institution |
| (2+7+0!)*0! | Ow Zhen Quan | 8 | Hwa Chong Institution |
| 7+0+0!+2 | Tang Zhuo Hao Ray | 7 | Hwa Chong Institution |
| 2+0!+0+7 | Glenn Goh Rongjie | 9 | Hwa Chong Insituition |
| 7+2+0!+0 | Benjamin Lin Ruiyang | 1 | Hwa Chong Institution |
| 7+2+0^0 | Brooke R | 6 | Parker Middle School |
| (7+2+0!)0! | Lee Sad | 9 | Christian High School |
| 2+7+0!-0 | Caylie Scherba | 8 | Hudson Montessori Middle School |
| 2+0+7+0! | Nayan Shah | 8 | Hudson Montessori School |
| 7+2+0!+0 | Selena Starbard | 7 | Rohrer M.S. |
| (7+2)+0^0 | Dylan S. | 6 | Parker Middle School |
| 7+2+0^0 | Katie S | 6 | Parker Middle School |
| 7+2+0^0 | Jon Tan | 8 | Hwachong Institution |
| 2+0!+0+7 | Darren Toh | 9 | Hwa Chong Institution |
| 2+7+0!+0 | Henry Trimpe | 1 | Hudson Montessori School |
| 0!+7+2-0 | Scott Tully | 6 | Parker Middle School |
| 2+7+0^0 | Anna T. | 6 | Parker Middle School |
| 2+0!+0+7 | Ang Chong Wei | 9 | Hwa Chong Institution |
| 7+0!+2+0 | Chong Zhi Wei | 7 | Hwa Chong Insitution |
| 7+2+0!+0 | Tan Yi Wei | 7 | Hwa Chong Institution |
| 7+0^0+2 | Foo Ren Xiang | 3 | Hwa Chong Institution |
| 2+0!+0+7 | Han Xiaoxiao | 9 | Hwa Chong Institution |
| 2+0+0!+7 | Lim Han Xin | 7 | Hci |
| 2+0!+0+7 | Shaun Lum Yu Xuan | 3 | Hwa Chong Institution |
| 7+2+0^0 | Hshieh Chyi Yan | 7 | Hwa Chong Institution |
| 2+7+0!+0 | Chan Shen Yee | 4 | Hwa Chong Institution |
| (7+2+0!)+0 | Lee Jun Yi | 8 | Hwa Chong Institution |
| 2+0!+0+7 | Low Kah Yi | 9 | Hwa Chong Institution |
| 7+2+0!+0 | Zhou Yifan | 3 | Hwa Chong Institution |
| 2+0!+0+7 | Zou Xiang Yu | 7 | Hwa Chong |
| 7+2+(0!)+0 | Xiao Yuting | 8 | Hwa Chong Institution |
| 2+(0!)+0+7 | Ng Soon Zhou | 7 | Hwa Chong Institution Highschool |
| 2+0^0+7
2+0!+7+0 |
Yu Zhou | 1 | Hwa Chong Institution |
| (7+0^0)+2 | Anthony | 6 | Parker |
| 7+2+0!-0 | Chrissa | 6 | John F. Kennedy School |
| 2*0!+0!+7 | NergüL | 10 | ÖZel Fatih Sultan Lisesi |
| 7+2+0!-0 | Steven | 6 | Christ The Divine Techer School |
| 2+0!+0+7 | Yuanxi | 9 | Hwa Chong Institution |
Please notify Judy Ann Brown of any errors.
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