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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!)! | Neal Amos | 10 | Brookstone School |
| 70+(2+0!)! | Timothy Tay Kai Cheng | 8 | Hwa Chong Institution |
| 70+(2+0!)! | Khu Boon Tat Daren | 9 | Hwa Chong Institution |
| 70+(2+0!)! | Michael Endick | 8 | Foothill Middle School |
| 70+(2+0!)! | Kam Mao Quan Gabriel | 7 | Hwa Chong Instituition |
| 70+[(2+0!)!] | Chan Tuck Ging | 7 | Hwa Chong Institution |
| .2^(-0!)+Sqrt(0!+7!) | Wu Zi Hao | 9 | Hwachong Institution |
| 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+(2+0!)! | Lau Wei Jie Jonathan | 9 | Hwa Chong Institution |
| 70+(2+0!)! | Delwin Koh | 8 | Hwa Chong Institution |
| 70+(2+0!)! | Benjamin Low | 8 | Hwa Chong Institution |
| 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+(0!+2)! | Benjamin Lin Ruiyang | 1 | Hwa Chong Institution |
| 70+(2+0!)! | Chong Tjen-Yao | 7 | Hwa Chong Institution |
| 70+(2+0!)! | Ang Chong Wei | 9 | Hwa Chong Institution |
| 70+(2+0!)! | Maung Thet Naing Win | 7 | Hwa Chong Institution |
| 70+(2+0!)! | Lim Han Xin | 7 | Hci |
| 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!)! | Zou Xiang Yu | 7 | Hwa Chong Institution |
| 70+[[2+(0!)]!] | Ng Soon Zhou | 7 | Hwa Chong Institution Highschool |
| 70+(2+0!)! | Yu Zhou | 1 | Hwa Chong Institution |
Please notify Judy Ann Brown of any errors.
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