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, 2010. Rules: use the digits in the year 2010 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: 19

 Solution Name Grade School 20-1+0=19 Ofek Yisraeli 3 Mount Neighbors School 20-1+0 Tony 9 Catonsville High School 20-1-0 Aneesha Kumar 7 Mount Olive Middle School 20/1-0! koby cohen 7 ramat efal israel 20-1+0 troy ellis 8 winslow jr. high 20-1-0 Megan Mahon 7 Mount Olive Middle School 20-1+0 Hollie Poehler 6 St. Matthew, Oak Creek, WI 20-1-0 wai 9 harth.s 20-1-0 Ryan F 6 ws parker middle school 20-1.0 Ryan R 6 ws parker ms 20-1!-0 Stefanie.S 6 W.S Parker Middle School 20-1+0 kevin s. 6 W.S. Parker MS 20-1*0! Julia.D 6 W.S.Parker MS 20-1-0 Andrew W. 6 W.S. Parker Middle School 20-1+0 Daniel G 6 W.S. Parker Middle School 20-1+0 joao.m 6 w.s. parker ms 20-1+0 Ricky.P 6 W.S Parker M.S 20-1+0 Kelly S. 6 W.S Parker Middle School 20-1+0 Olivia K 6 W.S Parker Middle School 20-1-0 Sammie E 6 W.S. Parker MS 20-1+0 Timothy F. 6 W.S Parker Middle School 20-1-0 Nicolas N 6 W.S.Parker MS 20-1-0 alex M. 6 WS parker MS (20-1)+0 Jennifer K. 6 W.S. Parker MS 20-1.0 Courtney H. 6 W.S Parker Middle School 20-1-0 jared 6 W.Psandin 20-1+0 Cayla 6 W.P. Sandin 20-1-0 Sarah Hamilton 6 W.P. Sandin 20-1-0 Briana Hart 6 W.P. Sandin 20-1+0 Donahue Geometry 8 Horace Mann Middle School 20-1-0 Garret Feige 6 W.P Sandin 20-1+0 Richard 12 North Allegheny 20-1+0 Anne Judkis 11 north allegheny 20-1+0 Tyler and Emily 6 Horace Mann Middle School 20^1- 0! Jackie Cabello 9 Alamo Heights High School 20-1+0 Helen Liljenwall 9 Alamo Heights High School

Please notify Suzanne Alejandre of any errors.