Math Forum || K-12 Math Puzzles || Problems of the Week || Student Center

 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.

## STUDENT SOLUTIONS: 16

 Solution Name Grade School 7x2+0!+0! Kate Ahrens 7 Mount Olive Middle School (2+0)x(0!+7) Chua Cheng Aik 9 Hwa Chong Institution 2x7+0!+0! Amanda Algabi 12 Model Secondary School For The Deaf 7x2+0!+0! Neal Amos 10 Brookstone School (7*2)+(0!+0!) Collin Andrew 7 Rohrer G. Middle School 7*2+0!+0! Paulina Baumann 7 Rohrer Middle School (7x2)+0!+0! Corbin Blue 9 Christian High School 7*2+0!+0! Brandon Cepas 7 Rohrer Ms 7*2+0!+0! Bob Chen 8 Northwest Junior High 7*2+0!+0! Timothy Tay Kai Cheng 8 Hwa Chong Institution 2x7+0!+0! Paxton Chia 8 Hwachong Institution (7x2)+0!+0! Calvin Sim Poh Chuan 12 Hwa Chong Institution (7+0^0)x2 Amy C 6 Parker Middle School (2+0)x(0!+7) Khu Boon Tat Daren 9 Hwa Chong Institution 7x2+0!+0! Tran Ha Duong 9 3h, Hwa Chong Institution 0!+0!+2*7 Michael Endick 8 Foothill Middle School (7*2)+(0!+0!) Timothy Esposito 7 Rohrer Middle School 7x2+0!+0! Sophie Farah 8 Hudson Montessori Middle School (7+0!)2+0 Tim Freborg 7 Hudson Montessori (7+0^0)x2 Kam Mao Quan Gabriel 7 Hwa Chong Instituition 7x2+(0!)+(0!) Chan Tuck Ging 7 Hwa Chong Institution 7*2+0!+0! Rebecca Groff 7 Rohrer Ms 2x7+0!+0! Aly G. 6 Parker Middle Shcool 7x2+0!+0! Maggie G. 6 Parker Middle School 2*(0!+0+7) Wu Zi Hao 9 Hwachong Institution 2((7+(0^0)) Nicholas Heng 8 Hwa Chong Institution 7x2+0!+0! Yeo Si Heng 8 Hwa Chong Instituition (2x7)+0!+0! 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 7x2+0!+0! Sim Zhi Jian 8 Hwa Chong Instiution 7*2+0!+0! Ng Xu Jie 8 Hwa Chong Institution 2*7+0!+0! Lau Wei Jie Jonathan 9 Hwa Chong Institution (7+0!)*2+0 Song Cheng Jun 7 Hwa Chong Instituition 7x2+0!+0! Tan Song Kai 8 Hwa Chong Institution 7x2+0!+0! Olivia Kamensky 8 Brookstone School 7x2+(0!)+(0!) Szeto Kah Keong 8 Hwa Chong Institution 7*2+0!+0! Delwin Koh 8 Hwa Chong Institution 2x7+0!+0! Gannon Lavins 7 Hudson Montessori School 7x2+0!+0! Won Cheng Yi Lewis 9 Hwa Chong Institution 2*(0+0!+7) Benjamin Low 8 Hwa Chong Institution 2*(7+0^0) Amanda L. 6 Parker Middle School Sqrt(2)^(7+0!)+0 Veronika Majcherova 11 St.Clare's, Oxford 7*2+0!+0! Ella Medicus 8 Hudson Montessori School 7x2+0!+0! Timothy Ng Yi Ming 8 Hwa Chong Institution 2x7+0!+0! Connor M. 6 Parker 7*2+0!+0! Jessica M 7 Mount Olive Middle School 7x2+0!+0! Kelsey M 6 Parker Middle School 2x7+0!+0! Margaret M. 6 Parker Middle School (7+0^0)x2 Monie M 6 W.S. Parker Middle School (7x2)+0!+0! Ng Jun Da Nelson 8 Hwa Chong Instituition 2*7+0!+0! Yuxiao Ning 12 Hoboken High School 2*7+0!+0! Thomas Offenburger 12 Model Secondary School For The Deaf (2x7)+0!+0! Cam O 6 Parker Middle School (7x2)+(0!+0!) John O.D 6 Parker Middle School (7+0^0)x2 Siobhan O 6 Parker Middle School 2*7+0!+0! Ow Zhen Quan 8 Hwa Chong Institution 7x2+0!+0! Tang Zhuo Hao Ray 7 Hwa Chong Institution (2*7)+(0!+0!) Shane Reilly 7 Roher M.S. (2*7)+(0!+0!) Nelson Remetz 7 Rohrer Ms 7x2+0!+0! Adam Roenberg 7 Hudson Montessori School 2*7+0!+0! Glenn Goh Rongjie 9 Hwa Chong Insituition 7*2+0!+0! Brandi Rusk 7 Rohrer Middle School (7x2)+0!+0! Benjamin Lin Ruiyang 1 Hwa Chong Institution 7x2+0!+0! Caylie Scherba 8 Hudson Montessori Middle School (2x7)+0!+0! Nayan Shah 8 Hudson Montessori School 7*2+0!+0! Sandra Syhalath 7 Rohrer M.S. (7x2)+0!+0! Dylan S. 6 Parker Middle School (2+0)x(0!+7) Darren Toh 9 Hwa Chong Institution (7x2)+0!+0! Henry Trimpe 7 Hudson Montessori School (7x2)+0!+0! Scott Tully 6 Parker Middle School 2x7+0!+0! Ang Chong Wei 9 Hwa Chong Institution (7*2)+0!+0! (7+0!)*2+0 Chong Zhi Wei 7 Hwa Chong Insitution 7*2+0!+0! Tan Yi Wei 7 Hwa Chong Institution 7*2+0!+0! Steven Winklosky 6 Christ The Divine Techer School (7x2)+0!+0! Abby W. 6 Parker Middle School (7+0^0)*2 Foo Ren Xiang 3 Hwa Chong Institution 2x7+0!+0! Lim Han Xin 7 Hci (7x2)+0!+0! Hshieh Chyi Yan 7 Hwa Chong Institution 7*2+0!+0! Chan Shen Yee 4 Hwa Chong Institution 7x2+0!+0! Lee Jun Yi 8 Hwa Chong Institution 2*(0!+0+7) Low Kah Yi 9 Hwa Chong Institution 7x2+0!+0! Zhou Yifan 3 Hwa Chong Institution (2x7)+0!+0! Zou Xiang Yu 7 Hwa Chong Institution 7*2+(0!)+(0!) [7+(0!)]x2+0 Xiao Yuting 8 Hwa Chong Institution 2*7+(0!)+(0!) Ng Soon Zhou 7 Hwa Chong Institution Highschool (7+0^0)*2 Yu Zhou 1 Hwa Chong Institution 0!+7x2+0! Chrissa 6 John F. Kennedy School Sqrt(2)^(0+0!+7) NergüL 10 ÖZel Fatih Sultan Lisesi 2x7+0!+0! Yuanxi 9 Hwa Chong Institution

Please notify Judy Ann Brown of any errors.