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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, 2004. Rules: use the digits in the year 2004 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: 100

 Solution Name Grade School 200/(sqrt4) Steve Conner 11 Badger High School 20*(0!+4) Chee Seng Hong Joe 9 The Chinese High School, Singapore (.2^-(0!+0!))4 (4+0!)!-20 (20)(0!+4) (sqrt4/.02)+0 Lisa Gardner 8 Lincoln Middle School 20(4+0!) Wayne Ho 9 The Chinese High School (4+0!)x20 Jenny Hume 8 International School of Toulouse 20(4+0!) Schwingshackl Ilona 8 Scientific High School 20(4+0!) Jonathan Kessel 12 Model Secondary School for the Deaf 20*(4+0!) Virgilio Urbina Lazardi 5 Canadian Academy, Kobe, Japan 200/sqrt4 Jillian Lemke 7 Birmingham Covington School 200/ sqrt 4 Paris Lewbel 7 Birmingham Covington School (sqrt4)/0.02 Jeremy Yap Jun Liang 7 The Chinese High (4 + 0!)! - 20 Andreea Lintia 8 Mount Olive Middle School (4+0!)!-20 Jon Manning 12 Model Secondary School for the Deaf (4 + 0!) * 20 Emily Miller 11 Badger High School 200÷(sqrt(4)) Jezreel Ng 9 The Chinese High School, Singapore sqrt4/.02*0! Patrick Nolan 12 Model Secondary School for the Deaf 200/sqrt4 Abhishek Pant 5 Canadian Academy, Kobe Japan 20*(4+0!) Josh Pawloski 7 Birmingham Covington School (4+0!)!-20 Rohit Ramesh 8 Mount Olive Middle School (4+0!)!-20 Sam Raskin 11 Oak Park River Forest High School 20x(4+0!) Amelia Shea 8 Eleanor N Johnson Middle School 20*(4+0!) David Sherman 7 Birmingham Covington School (4+0!)*20 Amanda Smith 7 Birmingham Covington School 20(0! +4) Karla Van Rensburg 9 Brookstone 200/(sqrt4) Asya 6 Mount Olive Middle School [(4+0!)! - 20] Jeremy 11 Arlington High School 200/sqrt4 Evie Chutz & Jordan Kiehle 7 Birmingham Covington School (4+0!)*20 Lauren Hertz & Madeleine Blum 7 Bimingham Covington School 20*(4+0!) Emma Hubbard & Rachel Crews 7 Birmingham Covington School 20*(4+0!) Laura Redebaugh & Maddie Capo 7 Birmingham Covington School (4+0!)*20 Hailey Willington & Cedric Jackson 7 Birmingham Covington School 200/Sgrt4 Anna & Hannah 7 Birmingham Covington School 200/(sqrt4) Emily & Megan 7 Birmingham Covington School 200/(sqrt4) Evan & Joe 7 Birmingham Covington School 20 x (4 + 0!) 200 ÷ sqrt(4) Gateways Classes 6 Chute Middle School 200/sqrt(4) Math Exploration Class 8 Foothill Middle School

Please notify Judy Ann Brown of any errors.