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: 21

 Solution Name Grade School (2+0!)x(0+7) Chua Cheng Aik 9 Hwa Chong Institution 7(0!+0!x2) Neal Amos 10 Brookstone School 7^0+20 Calvin Sim Poh Chuan 12 Hwa Chong Institution 20+(7*0)! Bob Chen 8 Northwest Junior High 20+(7^0) Timothy Tay Kai Cheng 8 Hwa Chong Institution (2+0!+0)x7 Khu Boon Tat Daren 9 Hwa Chong Institution 20+7^0 Tran Ha Duong 9 3h, Hwa Chong Institution 0+(0!+2)*7 Michael Endick 8 Foothill Middle School (2+0^0)x7 Lim Yu Sheng Fabian 9 Hwa Chong Institution [2!+0!+0]x7 Sam F 6 Parker Middle School (2+0^0)x7 Kam Mao Quan Gabriel 7 Hwa Chong Instituition 20+7^0 Chan Tuck Ging 7 Hwa Chong Institution 7^0+20 Maggie G. 6 Parker Middle School 7((2+(0^0)) Nicholas Heng 8 Hwa Chong Institution 7x0!x(2x0!) Yeo Si Heng 8 Hwa Chong Instituition 20 + 7^0 Cara Hudak 8 Hudson Montessori Middle Scholl (2+0+0!)(7) Lim Aik Hwee 9 Hwa Chong Institution (High School Section) 20+(7^0) Lee Zi Jian 8 Hwa Chong Instituion 20+(7^0) Sim Zhi Jian 8 Hwa Chong Instiution 7x((2)+(0^0)) Chow Zheng Jie 9 Hwa Chong Institution 20+7^0 Ng Xu Jie 8 Hwa Chong Institution 7*(2+0!)+0 Lau Wei Jie Jonathan 9 Hwa Chong Institution 20+7^0 Tan Song Kai 8 Hwa Chong Institution 7x(2+0!)+0 Szeto Kah Keong 8 Hwa Chong Institution 20+(7^0) Delwin Koh 8 Hwa Chong Institution 7(2+0!) Kelley Mcintire 9 Brookstone 7(2+0!)+0 Jessica M 7 Mount Olive Middle School 7x(2+0!)+0 Margaret M. 6 Parker Middle School 20+7^0 Ng Jun Da Nelson 8 Hwa Chong Instituition 20+7^0 Yuxiao Ning 12 Hoboken High School 7*(0!+2)-0 Zack O'connell 7 Rohrer Ms 7x(2+0!)-0 Cam O 6 Parker Middle School 7x(2+0^0) Jesse P 6 Parker Middle School 7*(2+0!)+0 Ow Zhen Quan 8 Hwa Chong Institution 20+7^0 Tang Zhuo Hao Ray 7 Hwa Chong Institution 7*(2+0!)+0 Glenn Goh Rongjie 9 Hwa Chong Insituition (7x(0!+2))-0 Benjamin Lin Ruiyang 1 Hwa Chong Institution 20+7^0 Caylie Scherba 8 Hudson Montessori Middle School 20 + 7^0 Nayan Shah 8 Hudson Montessori School 7^0+20 Bobby S 6 Parker Middle School (2+0!)x(0+7) Darren Toh 9 Hwa Chong Institution 20+7^0 Natalie V. 1 Joshua Eaton 20+7^0 Ang Chong Wei 9 Hwa Chong Institution (2+0!)*7+0 20+7^0 Chong Zhi Wei 7 Hwa Chong Insitution [7*(2+0^0)] Andrew Weindel 7 Rorer M.S. 7^0+20 Abby W. 6 Parker Middle School 7*(2+0!)-0 Tan Yi Wei 7 Hwa Chong Institution (2+0^0)*7 Foo Ren Xiang 3 Hwa Chong Institution (2+0!)x(7+0) Lim Han Xin 7 Hci 20+(0x7)! Shaun Lum Yu Xuan 3 Hwa Chong Institution 20+7^0 Hshieh Chyi Yan 7 Hwa Chong Institution 20+7^0 Lee Jun Yi 8 Hwa Chong Institution 20+0!^7 Low Kah Yi 9 Hwa Chong Institution 20+7^0 Zhou Yifan 3 Hwa Chong Institution (0!+2)x(0+7) Zou Xiang Yu 7 Hwa Chong Institution [2+(0!)]*7-0 Xiao Yuting 8 Hwa Chong Institution 7*[2+(0!)]+0 Ng Soon Zhou 7 Hwa Chong Institution Highschool 20+7^0 Yu Zhou 1 Hwa Chong Institution 20+7^0 Jared 6 Parker Middle School 20+7^0 Marissa 7 Mount Olive Middle School

Please notify Judy Ann Brown of any errors.