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, 2003. Rules: use the digits in the year 2003 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 71 to 80

 Solution Name Grade School 71 sqrt((3!+0!)!+2^0) Uroö Droftina 10 Gimnazija Beûigrad, Slovenia sqrt((3! + 0!)! + 2 - 0!) Lisa Gardner 7 Lincoln Middle School sqrt ((3 X 2 + 0!)! + 0!) Low Ing Cher Kenneth 9 The Chinese High School, Singapore sqrt[(3x2+0!)! + 0!] Koh Chao Rong 9 The Chinese High School SQRT[(3!+2^0)!+0!] John Woo 9 The Chinese High School sqrt[(3*2+0!)!+0!] Low Wen Xi 9 The Chinese High School 72 [(3+0!)!]x(2+0!) Dary Berke 12 Model Secondary School for the Deaf (3!^2)(0!+0!) Erin Biglin 8 Mount Olive Middle School (3+0!)!X(2+0!) Sylvia B 6 Parker Middle School 3*(2+0!+0!)! Lionel Chen 8 The Chinese High School 3!^2x(0!+0!) Melissa de Nijs 6 Pocahontas Middle School 3!^2x(0!+0!) James DeCelle 6 Johnson Middle School (3!^2)*(0!+0!) Uroö Droftina 10 Gimnazija Beûigrad, Slovenia 3x((2+0!+0!)!) Emily Fraser 6 Johnson Middle School (2+0!+0!)!*3 Crystal F. 6 Parker Middle School (2+0!+0!)!*3 John Gainfort 8 Mount Olive Middle School ((3)!^2)( 0! +0!) (3!)!/((0!+0!)/.2) Lisa Gardner 7 Lincoln Middle School (3+0!)! x (2+0!) David G. 9 Indio High School (3+0!)!x(2+0!) Jen Herrmann 6 Johnson Middle School (2+0!+0!)!x3 Ong Zhen Iang 9 The Chinese High School ((0!)+(0!)+2)!)x3 Peter Katsaros 6 Johnson Middle School (3!^2)(0!+0!) Cristin Kelly 8 Mount Olive Middle School 3 X (2 + 0! + 0!)! Low Ing Cher Kenneth 9 The Chinese High School, Singapore (3!)^2*(0!+0!) Sheldon Leong 9 The Chinese High School (3!)^2*(0!+0!) Ronald Lim 9 The Chinese High School (3!^2)x(0!+0!) Ruiqi Mao 6 Johnson Middle School (3 + 0!)! x (2 + 0!) Tan Kian Loong Melvin 9 The Chinese High School (Singapore) (3+0!)!*(2+0!) Kevin O'Connell 8 Mount Olive Middle School [3!^(0!+ 0!)] x 2 Koh Chao Rong 9 The Chinese High School (3!)^2x(0!+0!) Lee Schechter 6 Johnson Middle School (3!)^2 * (0!+0!) Christopher Seah 8 The Chinese High School, Singapore [(2+0!+0!)!]x3 Bridget Sheppard 6 Johnson Middle School [(3!)^2]*(0!+0!) Lim Ming Swin 9 The Chinese High School (2+0!+0!)!X3 John Woo 9 The Chinese High School (2+0!+0!)!*3 Low Wen Xi 9 The Chinese High School (3!)^2*(0!+0!) Sin Yong 9 The Chinese High School (2!+0!+0!)!*3 Ong Yan Zhi 9 The Chinese High School (2+0!+0!)!x3 Amanda 6 Parker Middle School (3!^2)x(0!+0!) Tadeja 4 Gimnazija Beûigrad (Slovenia) 73 sqrt((3!+0!)!+0!)+2 Uroö Droftina 10 Gimnazija Beûigrad, Slovenia sqrt((3! + 0!)! + 0!) + 2 Lisa Gardner 7 Lincoln Middle School sqrt ((3!+ 0!)! + 0!) + 2 Low Ing Cher Kenneth 9 The Chinese High School, Singapore (sqrt[((3!+0!)!)+0!])+2 Brett Michelson 6 Johnson Middle School {sqrt[(3! + 0!)! + 0!]} + 2 Koh Chao Rong 9 The Chinese High School sqrt[(3!+0!)!+0!]+2 Low Wen Xi 9 The Chinese High School 74 No solutions have been submitted for this number. 75 (.2^-(0!+0!))3 Lisa Gardner 7 Lincoln Middle School 76 No solutions have been submitted for this number. 77 No solutions have been submitted for this number. 78 No solutions have been submitted for this number. 79 No solutions have been submitted for this number. 80 20X(3+0!) Sylvia B 6 Parker Middle School 20x(3+0!) James DeCelle 6 Johnson Middle School 20*(3+0!) Uroö Droftina 10 Gimnazija Beûigrad, Slovenia 20*(0!+3) Nah Yu En 7 The Chinese High School 20x(3+0!) Michelle Foley 6 Pocahontas Middle School 20x(3+0!) Emily Fraser 6 Johnson Middle School 20*(3+0!) Crystal F. 6 Parker Middle School (20)(3 + 0!) Lisa Gardner 7 Lincoln Middle School (3+0!)x20 Jen Herrmann 6 Johnson Middle School 20x(3+0!) Ong Zhen Iang 9 The Chinese High School 20*(3+0!) Li Jiu 9 The Chinese High School 20x(3+(0!)) Peter Katsaros 6 Johnson Middle School 20 X (3+0!) Low Ing Cher Kenneth 9 The Chinese High School, Singapore 20*(3+0!) Sheldon Leong 9 The Chinese High School 20*(3+0!) Ronald Lim 9 The Chinese High School (0!+3)x20 Ruiqi Mao 6 Johnson Middle School (3 + 0!) x 20 Tan Kian Loong Melvin 9 The Chinese High School (Singapore) 20*(3+0!) Oszkár Mihály 10 SZTE Ságvári Endre Gyakorló Gimn. 20(3 + 0!) Tok Wei Min 7 The Chinese High School 20(3 + 0!) Koh Chao Rong 9 The Chinese High School 20*(3+0!) Christopher Seah 8 The Chinese High School, Singapore (3+0!)x20 Chew Chin Seng 7 The Chinese High School 20x(3+0!) Bridget Sheppard 6 Johnson Middle School 20*(3+0!) Lim Ming Swin 9 The Chinese High School 20x(3+0!) John Woo 9 The Chinese High School (3+0!)*20 Low Wen Xi 9 The Chinese High School 20*(3+0!) Sin Yong 9 The Chinese High School 20*(3+0!) Cai Yufeng 2 The Chinese High School 20(3+0!) Ong Yan Zhi 9 The Chinese High School 20*(3+0!) Anastasia Zhuravlyova 8 Mount Olive Middle School (3+0!)x20 Amanda 6 Parker Middle School 20x(3+0!) Michelle 6 Pocahontas Middle School 20(3+0!) Stephanie 8 Mount Olive Middle School 20x(3+0!) Tadeja 4 Gim;nazija Beûigrad (Slovenia)

Please notify Judy Ann Brown of any errors.