This Web page is intended to record solutions submitted by students in grades three through twelve. Student solutions were submitted January 1, 1999 through February 1,1999. Submissions for missing numbers can still be submitted using the Web form.Rules: use the digits in the year 1999 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.
| Solution | Name | Grade | School | |
| 31 | 1 + [9 x sqrt(9)] + sqrt(9) | Matt Agnew | 7 | Wilson Central Junior High, West Lawn, PA |
| 31 | (9xsqrt9)+sqrt9+1 | David Auble | 6 | Raymond Park M.S. |
| 31 | (sqrt9x9)+1+sqrt9 | Ashley Carter | 6 | Raymond Park Middle School |
| 31 | (sqrt9x9)+sqrt9+1 | Tony Drake | 6 | Raymond Park Middle School |
| 31 | (9*sqrt9)+(sqrt9+1) | Michael Falls | 6 | Raymond Park Middle School |
| 31 | 1 + sqrt9 +(9*sqrt9) | Lisa Gardner | 3 | Boyette Springs ES |
| 31 | 9(sqrt9)+sqrt9+1 | Nicholas Terracciano | 8 | St.Jude School, Brooklyn, NY |
| 32 | [sqrt(9)! x sqrt(9)!] - [sqrt(9) + 1] | Matt Agnew | 7 | Wilson Central Junior High, West Lawn, PA |
| 32 | (-1) +(sqrt9)! + (9)(sqrt9) | Lisa Gardner | 3 | Boyette Springs ES |
| 32 | sqrt9(9)+ (sqrt9)! -1 | Jennifer Gauthier | 8 | St.Jude School, Brooklyn, NY |
| 32 | (sqrt9*9)+[(sqrt9)!-1] | David Moudy | 7 | Raymond Park Middle School |
| 33 | (9+1)sqrt9+sqrt9 | David Auble | 6 | Raymond Park M.S. |
| 33 | (-1 + 9)(sqrt9) + 9 | Lisa Gardner | 3 | Boyette Springs ES |
| 33 | ( (9 + 1) x sqrt 9 ) + sqrt 9 | Will Morrison | 4 | Cheat Lake Elementary |
| 33 | (sqrt9*9)+[(sqrt9)! * 1] | David Moudy | 7 | Raymond Park Middle School |
| 33 | sqrt9(9+1)+sqrt9 | Luis Urena | 8 | St.Jude School, Brooklyn, NY |
| 34 | [sqrt(9)! x sqrt(9)! ] - [sqrt(9) - 1] | Christine Alaniz | 7 | Wilson Central Junior High, West Lawn, PA |
| 34 | (1 - sqrt9) +(sqrt9)! *(sqrt9)! | Lisa Gardner | 3 | Boyette Springs ES |
| 34 | sqrt 9(9)+(sqrt9)! +1 | Jennifer Gauthier | 8 | St.Jude School, Brooklyn, NY |
| 34 | (sqrt9*9)+[(sqrt9)! +1] | David Moudy | 7 | Raymond Park Middle School |
| 35 | sqrt9x9+9-1 | David Auble | 6 | Raymond Park M.S. |
| 35 | -1+9+9*sqr9 | Jared Baker | 8 | Reading-Fleming Middle School |
| 35 | sqrt9x9+9-1 | Tony Drake | 6 | Raymond Park Middle School |
| 35 | (sqrt9*9)+(9-1) | Michael Falls | 6 | Raymond Park Middle School |
| 35 | sqrt9*9+9-1 | Jeramey Franklin | 6 | Raymond Park Middle School |
| 35 | (-1) +9 + (9* sqrt9) | Lisa Gardner | 3 | Boyette Springs ES |
| 35 | sqrt9x9-1+9 | Sara Gobble | 6 | Raymond Park Middle School |
| 35 | (sqrt 9 x 9) + 9 - 1 | Jessica Hammond | 4 | Cheat Lake Elementary |
| 35 | sqrt9x9+9-1 | Luis Urena | 8 | St.Jude School, Brooklyn, NY |
| 35 | -1+9+(9*sqrt9) | Chris Waid | 8 | RFMS |
| 35 | 9 x sqrt(9) + 9 - 1 | Karl Weist | 7 | Wilson Central Junior High, West Lawn, PA |
| 36 | sqrt9x9+9x1 | Crystal Abel | 8 | St.Jude School, Brooklyn, NY |
| 36 | 1(sqrt9x9)+9 | David Auble | 6 | Raymond Park M.S. |
| 36 | 1x(sqrt9)x((sqrt9)+9) | Wendy Cheung | 10 | The Bishop Strachan School |
| 36 | sqrt9x9+9x1 | Tony Drake | 6 | Raymond Park Middle School |
| 36 | (sqrt9*9) + (9*1) | Michael Falls | 6 | Raymond Park Middle School |
| 36 | 1*9 +(9*sqrt9) | Lisa Gardner | 3 | Boyette Springs ES |
| 36 | ( ( sqrt 9 x 9 ) + 9 ) x 1 | Jessica Hammond | 4 | Cheat Lake Elementary |
| 37 | sqrt9x9+9+1 | Crystal Abel | 8 | St.Jude School, Brooklyn, NY |
| 37 | sqrt9x9+9+1 | David Auble | 6 | Raymond Park M.S. |
| 37 | 1+9+9*sqr9 | Jared Baker | 8 | Reading-Fleming Middle School |
| 37 | sqrt9x9+9+1 | Tony Drake | 6 | Raymond Park Middle School |
| 37 | (sqrt9*9) + (9+1) | Michael Falls | 6 | Raymond Park Middle School |
| 37 | 1 + 9 +(9*sqrt9) | Lisa Gardner | 3 | Boyette Springs ES |
| 37 | sqrt9x9+9+1 | Sara Gobble | 6 | Raymond Park Middle School |
| 37 | ((sqrt 9 x 9) + 9) + 1 | Jessica Hammond | 4 | Cheat Lake Elementary |
| 37 | 1+9+(9*sqrt9) | Chris Waid | 8 | RFMS |
| 38 | [sqrt(9)! x sqrt(9)! ] + [sqrt(9) - 1] | Matt Agnew | 7 | Wilson Central Junior High, West Lawn, PA |
| 38 | (sqrt9! *sqrt9! )+(sqrt9-1) | Michael Falls | 6 | Raymond Park Middle School |
| 38 | (-1) +sqrt9 + (sqrt9)! (sqrt9)! | Lisa Gardner | 3 | Boyette Springs ES |
| 38 | (sqrt9)! x (sqrt9)! + (sqrt9-1) | Dominique Natoli | 8 | St.Jude School, Brooklyn, NY |
| 38 | (sqrt9)! *(sqrt9)+(sqrt9)-1 | Ms. Stonequist's Math Class | 6 | Marie Murphy School |
| 39 | sqrt9(9+1)+9 | David Auble | 6 | Raymond Park M.S. |
| 39 | (sqrt9! *sqrt9! )+(sqrt9*1) | Michael Falls | 6 | Raymond Park Middle School |
| 39 | (1 +9)(sqrt9) +9 | Lisa Gardner | 3 | Boyette Springs ES |
| 39 | ((9 + 1) x sqrt 9) + 9 | Lisa Jackson | 4 | Cheat Lake Elementary |
| 39 | ((9 + 1) x sqrt 9) + 9 | Will Morrison | 4 | Cheat Lake Elementary |
| 39 | sqrt9x(9+1)+9 | Dominique Natoli | 8 | St.Jude School, Brooklyn, NY |
| 40 | (sqrt9! * sqrt9!) + (sqrt9+1) | Michael Falls | 6 | Raymond Park Middle School |
| 40 | 1 + sqrt9 +(sqrt9)! (sqrt9)! | Lisa Gardner | 3 | Boyette Springs ES |
| 40 | (sqrt9)! x (sqrt9)! +sqrt9 +1 | Noelle Ingrassia | 8 | St.Jude School, Brooklyn, NY |
| Solutions 1 to 10 | Solutions 11 to 20 | Solutions 21 to 30 |
| Solutions 41 to 50 | Solutions 51 to 60 | Solutions 61 to 70 |
| Solutions 71 to 80 | Solutions 81 to 90 | Solutions 91 to 100 |
Please notify Judy Ann Brown of any errors.
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The Math Forum ** 22 December 1998