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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, 2005.
Rules: use the digits in the year 2005 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 |
| 20/0.5 | Simon Alger | 10 | Cannons Creek |
| (20/.5)+0 | JP Allport | 7 | RSM Intermediate |
| (200)/5 | Ray Alspach | 7 | Williamstown Middle School |
| 200/5 | Jonathan Bailey | 6 | Johnson Middle School |
| 200/5 | Jordan Boston | 6 | Floyd Middle Magnet School |
| 200/5 | Casey Ciechanowski | 6 | Johnson Middle School |
| 200/5 | Nick Cilenti | 8 | Mount Olive Middle School |
| 200/5 | Bryan Clark | 11 | McCann Technical High School |
| 200/5 | Sarah Connolly | 6 | Johnson Middle School |
| 200/5 | Shane Conto | 7 | Rohrer Middle School |
| 200/5 | Heather Dalton | 8 | Mount Olive Middle School |
| 200/5 | Courtney Durden | 6 | Floyd Middle Magnet |
| 5!/(2+0!)+0 | Dave Frizzell | 6 | Johnson Middle School |
| 5!/(2+0!)+0 | Lisa Gardner | 9 | Buchholz High School |
| 200/5 | Mike G. | 6 | Johnson Middle School |
| 200/5 | Taylor G | 6 | Johnson Middle School |
| 5!/(2+0!)+0 | Stephen Hall | 7 | The Gordon School |
| 200/5 | Steven Hars | 8 | Mount Olive Middle School |
| 5!/(2+0!)+0 | Victoria Hebner | 6 | Johnson Middle School |
| 200/5 | Lau Wei Jie Jonathan | 7 | Hwa Chong Institution |
| 200/5 | George C. J. | 6 | Floyd Midillde Magnet |
| 200÷5 | Tim Kenslea | 5 | Underwood School, Newton, MA |
| 200/5 | Tim King | 5 | Underwood School, Newton, MA |
| 200/5 | Anna Lay | 7 | Rohrer Middle School |
| 5!/(2+0!)+0 | Adam Lemaire | 11 | McCann Technical High School |
| 200/5 | Devin McKenney | 6 | Floyd Middle Magnet |
| 200/5 | Matt Miller | 8 | Mount Olive Middle School |
| 200/5 | Sarah Miller | 8 | Mount Olive Middle School |
| 200/5 | Margaret Mohrenweiser | 9 | West Milford High School |
| 200/5 | Mark M. | 6 | Parker Middle School |
| 5!/(2+0!)-0 | Colby Nadeau | 6 | Johnson Middle School |
| 200/5 | Kanako Nakagawa | 5 | Canadian Academy Japan, Kobe |
| 200/5 | Daniel Nussbaum | 8 | Mount Olive Middle School |
| 200/5 | Erin N. | 6 | Johnson Middle School |
| 200/5 | Molly Otremsky | 7 | Rohrer Middle School |
| 200/5 | Sam Picciuti | 8 | Mount Olive Middle School |
| 200/5 | Calvin Pratt | 6 | Johnson Middle School |
| 200/5 | Shannon Prendergast | 6 | Johnson Middle School |
| 5!/(2+0!)-0 | Chris Salls | 8 | Mendive |
| 200/5 | Chris Schackerman | 7 | Rohrer Middle School |
| 200/5 | Jenna Surmick | 7 | Rohrer Middle School |
| 200/5 | Diana Tizcareno | 9 | Coachella Valley High School |
| 200/5 | Carolyn Tracey | 6 | Johnson Middle School |
| 200/5 | Amanda Von Lindern | 8 | Mount Olive Middle School |
| 20*sqrt(5-0!) | George Wagner | 8 | Mount Olive Middle School |
| 200/5 | Brittney Wheeler | 11 | McCann Technical High School |
| 200÷5 | Jerrold Au Ying Xian | 7 | Hwa Chong Institution |
| 200/5 | Nigel Poh Zi Xiang | 7 | Hwa Chong Institution |
| 200÷5 | Lewis Won Cheng Yi | 7 | Hwa Chong Institution |
| 200/5 | Andre | 1 | Desert Mirage |
| 200/5 | Benny | 8 | Ahern Middle School |
| 200/5 | Jonny | 7 | Rohrer Middle School |
| 200/5 | JR | 7 | St. Bernadette School, Brooklyn, NY |
| 200/5 | Kaitlin | 8 | Mount Olive Middle School |
| 200/5 | Kelsey | 6 | Johnson Middle School |
| 200/5 | Kevin | 11 | McCann Technical High School |
| 200/5 | Mollie | 6 | Johnson Middle School |
| 200/5 | Tim | 8 | John J Ahern Middle School |
| 200/5 | Jenna MacLellan and Emily Falvey | 6 | Johnson Middle School |
| 200/5 | Jagjot Pataria, Krista D'Onofrio, Matthew Mari | 7 | St. Bernadette, Brooklyn, NY |
| 200/5 | Pooja Patil, Paulina Wyszynski | 8 | Mount Olive Middle School |
| 200/5 | Bianc, Dom, Ari | 7 | St. Bernadette School |
Please notify Judy Ann Brown of any errors.
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