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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! | Jessica M | 7 | Mount Olive Middle School |
| (70/2)-0! | hannaH Marshall | 7 | M.O.M.S. |
| 20*(0!+.7) | Low Kah Yi | 9 | Hwa Chong Institution |
| 70/2-0! | Delwin Koh | 8 | Hwa Chong Institution |
| 70/2-0! | Zhou Yifan | 3 | Hwa Chong Institution |
| 70/2-0! | Jamie Caputo | 7 | Rohrer Middle School |
| (70/2)-0! | Molly Grasmick | 7 | Rohrer MS |
| 70/2-0! | TJ Hawn | 7 | Rohrer Middle School |
| 70/2-0! | KEVIN GRIESE | 7 | ROHRER MS |
| 70/2-0! | Eddie Cunningham | 7 | Rohrer MS |
| 70/2-0! | Eddie Cunningham | 7 | Rohrer MS |
| 70/2-0! | Eddie Cunningham | 7 | Rohrer MS |
| 70/2-0! | Eddie Cunningham | 7 | Rohrer MS |
| 70/2-0! | Eddie Cunningham | 7 | Rohrer MS |
| 70/2-0! | zack o'connell | 7 | rohrer ms |
| (70/2)-0! | Tan Song Kai | 8 | Hwa Chong Institution |
| 70/2-0!-0 | Lau Wei Jie Jonathan | 9 | Hwa Chong Institution |
| 20*(0!+.7) | Low Kah Yi | 9 | Hwa Chong Institution |
| 70/2-0! | Alexa Lindsay | 7 | Rohrer Middle School |
| 70/2-0! | Neal Amos | 10 | Brookstone School |
| 70/2-0! | Khu Boon Tat Daren | 9 | Hwa Chong Institution |
| 70/2-0! | Kelley mcintire | 9 | Brookstone |
| 7/.2-(0!+0) | Lee Zi Jian | 8 | Hwa Chong Instituition |
| 7 / 0.2 - 0! | Michael Endick | 8 | Foothill Middle School |
| (70/2)-0! | Kelly Clark | 7 | Rohrer Middle School |
| (7/.2)-0^0 | Andrew Weindel | 7 | Rorer M.S. |
| (70/2)-0! | Timothy Esposito | 7 | Rohrer Middle School |
| 70/2-0! | Chrissa | 6 | John F. Kennedy School |
| 70/2-0! | Chew Hanson | 7 | Hwa Chong Institution(High School) |
| (70/2)-(0!) | Ng Soon Zhou | 7 | Hwa Chong Institution Highschool |
| 7/.2-0!-0 | Chan Tuck Ging | 7 | Hwa Chong Institution |
| 70/2-0! | Ng Xu Jie | 8 | Hwa Chong Institution |
| (70/2)-0! | Lee Jun Yi | 8 | Hwa Chong Institution |
| 70/2-0! | Bob Chen | 8 | Northwest Junior High |
| 70/2-0! | Ng Jun Da Nelson | 8 | Hwa Chong Instituition |
| 70/2-0! | Benjamin Low | 8 | Hwa Chong Institution |
| 70/2-0! | Glenn Goh Rongjie | 9 | Hwa Chong Insituition |
| 70/2-0! | Timothy Tay Kai Cheng | 8 | Hwa Chong Institution |
| 70/2-0!+0 | nate c. | 6 | Parker Middle School |
| 7/.2-0!+0 | Song Cheng Jun | 7 | Hwa Chong Instituition |
| 70/2-0! | Cam O | 6 | Parker Middle School |
| 70/2 - 0! | Nayan Shah | 8 | Hudson Montessori School |
| 70/2-0!x0! | Maggie G. | 6 | Parker Middle School |
| 70/2-0! | Abigail W | 6 | Parker Middle School |
| (70 / 2) - 0! | Cara Hudak | 8 | Hudson Montessori Middle Scholl |
| 70/2-0! | Caylie Scherba | 8 | Hudson Montessori Middle School |
| 70/2-0! | Zou Xiang Yu | 7 | Hwa Chong Institution |
| 70/2-0! | Lim Han Xin | 7 | HCI |
| 20*(0!+.7) | Wu Zi Hao | 9 | HwaChong Institution |
| 70/2-0! | Tan Song Kai | 8 | Hwa Chong Institution |
| (7/.2)-0!+0 | Ow Zhen Quan | 8 | Hwa Chong Institution |
| (70/2)-0! | Szeto Kah Keong | 8 | Hwa Chong Institution |
| 70/2-0! | Yuxiao Ning | 12 | Hoboken High School |
| (70/2)-0! | Kam Mao Quan Gabriel | 7 | Hwa Chong Instituition |
| 70/2-0! | Yu Zhou | 1 | Hwa Chong Institution |
Please notify Judy Ann Brown of any errors.
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