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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!+Sqrt(0!+7!) | Chua Cheng Aik | 9 | Hwa Chong Institution |
| 72+0!+0! | Neal Amos | 10 | Brookstone School |
| 72+0!+0! | Paulina Baumann | 7 | Rohrer Middle School |
| 72+(0!+0!) | Bryce S. Brown | 7 | William G Rohrer Middle School |
| 72+0!+0! | Bob Chen | 8 | Northwest Junior High |
| 72+0!+0! | Timothy Tay Kai Cheng | 8 | Hwa Chong Institution |
| 72+0!+0! | Paxton Chia | 8 | Hwachong Institution |
| 72+0!+0! | Jackie Cuneo | 7 | Rohrer Ms |
| 72+0!+0! | Billy C. | 6 | Parker Middle School |
| 2+0!+Sqrt(0!+7!) | Khu Boon Tat Daren | 9 | Hwa Chong Institution |
| (72+0!)+0! | Mae D | 6 | Parker Middle School |
| 72+0!+0! | Michael Endick | 8 | Foothill Middle School |
| 72+(0!+0!) | Timothy Esposito | 7 | Rohrer Middle School |
| 72+0!+0! | Sophie Farah | 8 | Hudson Montessori Middle School |
| 72+0!+0! | Kam Mao Quan Gabriel | 7 | Hwa Chong Instituition |
| 72+0!+0! | Chan Tuck Ging | 7 | Hwa Chong Institution |
| 72+0!+0! | Rebecca Groff | 7 | Rohrer Ms |
| 2+0!+Sqrt(0!+7!) | Wu Zi Hao | 9 | Hwachong Institution |
| 72+0!+0! | Yeo Si Heng | 8 | Hwa Chong Instituition |
| 72+0!+0! | Cara Hudak | 8 | Hudson Montessori Middle Scholl |
| 72+0!+0! | Matt H | 6 | Parker Middle School |
| 72+0!+0! | Anthony Illiano | 7 | Rohrer M.S. |
| 72+0!+0! | Lee Zi Jian | 8 | Hwa Chong Instituition |
| 72+0!+0! | Sim Zhi Jian | 8 | Hwa Chong Instiution |
| 72+0!+0! | Ng Xu Jie | 8 | Hwa Chong Institution |
| 72+0!+0! | Lau Wei Jie Jonathan | 9 | Hwa Chong Institution |
| 72+0!+0! | Song Cheng Jun | 7 | Hwa Chong Instituition |
| 72+0!+0! | Olivia Kamensky | 8 | Brookstone School |
| 72+0!+0! | Szeto Kah Keong | 8 | Hwa Chong Institution |
| 72+0!+0! | Delwin Koh | 8 | Hwa Chong Institution |
| 72+0!+0! | Won Cheng Yi Lewis | 9 | Hwa Chong Institution |
| 2+0!+(Sqrt(0!+7!)) | Benjamin Low | 8 | Hwa Chong Institution |
| 72+0!+0! | Hannah Marshall | 7 | M.O.M.S. |
| 72+0!+0! | Sammy Mayall | 6 | Viewpoint |
| (72)+0!+0! | Kelley Mcintire | 9 | Brookstone |
| 0!+0!+72 | Ian M | 6 | Parker Middle School |
| 72+0!+0! | Jessica M | 7 | Mount Olive Middle School |
| 72+0!+0! | Ng Jun Da Nelson | 8 | Hwa Chong Instituition |
| 72+0!+0! | Yuxiao Ning | 12 | Hoboken High School |
| 72+(0!+0!) | Brian O | 6 | Parker Middle School |
| 72+0!+0! | Cam O | 6 | Parker Middle Shcool |
| 72+0!+0! | Janey Perry | 7 | Rohrer Ms |
| 72+0!+0! | Tang Zhuo Hao Ray | 7 | Hwa Chong Institution |
| 72+(0!+0!) | Nelson Remetz | 7 | Rohrer Ms |
| 72+(0!+0!) | Kelly Roche | 7 | Rohrer Ms |
| 72+0!+0! | Glenn Goh Rongjie | 9 | Hwa Chong Instituition |
| 72+0!+0! | Benjamin Lin Ruiyang | 1 | Hwa Chong Institution |
| 72+0!+0! | Rachael Samaroo | 7 | Rohrer Middle School |
| 72+0!+0! | Caylie Scherba | 8 | Hudson Montessori Middle School |
| (72)+(0!+0!) | Kassidy Schmidt | 7 | Rohrer Middle School |
| 72+0!+0! | Jeff Spicoli | 7 | Rohrer Ms |
| 72+0!+0! | Selena Starbard | 7 | Rohrer M.S. |
| 72+0!+0! | Rachel Stewart | 7 | Mount Olive Middle School |
| 72+0!+0! | Katie S | 6 | Parker Middle School |
| 72+0!+0! | Scott Tully | 6 | Parker Middle School |
| 72+0!+0! | Elizabeth Wargo | 8 | Hudson Montessori School |
| 72+0!+0! | Chong Zhi Wei | 7 | Hwachong |
| 72+0!+0! | Tan Yi Wei | 7 | Hwa Chong Institution |
| 72+0!+0! | Jerrold Au Ying Xian | 9 | Hwa Chong Institution |
| 72+0!+0! | Lim Han Xin | 7 | Hci |
| 72+0!+0! | Lee Jun Yi | 8 | Hwa Chong Institution |
| 2+0!+Sqrt(0!+7!) | Low Kah Yi | 9 | Hwa Chong Institution |
| 72+0!+0! | Zhou Yifan | 3 | Hwa Chong Institution |
| 72+0!+0! | Zou Xiang Yu | 7 | Hwa Chong Institution |
| 72+(0!)+(0!) | Ng Soon Zhou | 7 | Hwa Chong Institution Highschool |
| 72+0!+0! | Yu Zhou | 1 | Hwa Chong Institution |
| 72+0!+0! | Alicia Z. | 6 | Parker Middle School |
| 0!+72+0! | Shane | 6 | J.F.K.School |
Please notify Judy Ann Brown of any errors.
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