A Math Forum Project

1999 Mathematics Game

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Math Forum || Problems of the Week || Student Center
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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.

STUDENT SOLUTIONS 61 to 70

  Solution Name Grade School
61 (sqrt9! *9)+(sqrt9! +1) Michael Falls 6 Raymond Park Middle School
61 1 + (sqrt9)! +9(sqrt9)! Lisa Gardner 3 Boyette Springs ES
61 9[(sqrt9)! ]+(sqrt9)! +1 Karen Kull 7 St.Jude School, Brooklyn, NY
62 [sqrt(9)! x 9] + [9 - 1] Christine Alaniz 7 Wilson Central Junior High, West Lawn, PA
62 (sqrt9! *9)+(9-1) Michael Falls 6 Raymond Park Middle School
62 (-1 +9) +9(sqrt9)! Lisa Gardner 3 Boyette Springs ES
62 9(sqrt9)! +9-1 Danielle Marquez 7 St.Jude School, Brooklyn, NY
62 sqrt9! *9+9-1 David Moudy 7 Raymond Park Middle School
63 9(9-1)-9 Jinane Beaubrun 8 St.Jude School, Brooklyn, NY
63 [9-1]x9-9 Ross Bragg 6 Raymond Park Middle School
63 (1+sqrt9)! x (sqrt9)-9 Wendy Cheung 10 The Bishop Strachan School
63 (9-1)x9-9 Tony Drake 6 Raymond Park Middle School
63 (sqrt9! *9)+(9*1) Michael Falls 6 Raymond Park Middle School
63 (1)(9) +9(sqrt9)! Lisa Gardner 3 Boyette Springs ES
63 1xsqrt9! x9+9 Michelle Goldwyn 8 Reading-Fleming Middle School
63 (9 - 1) x 9 - 9 Lisa Jackson 4 Cheat Lake Elementary
64 (sqrt9! *9)+(9+1) Michael Falls 6 Raymond Park Middle School
64 (1 +9) +9(sqrt9)! Lisa Gardner 3 Boyette Springs ES
64 9xsqrt9! +1+9 Michelle Goldwyn 8 Reading-Fleming Middle School
64 9[(sqrt9)! ]+9+1 Karen Kull 7 St.Jude School, Brooklyn, NY
65 (sqrt9!/sqrt9)^sqrt9! +1 Michael Falls 6 Raymond Park Middle School
65 (-1+9)!/((sqrt9)!)! +9 Lisa Gardner 3 Boyette Springs ES
65 (sqrt9!/sqrt9)^sqrt9! +1 David Moudy 7 Raymond Park Middle School
66 (9+1)*((sqrt9)!)+(sqrt9)! Nicholas Allison 7 Comberton Village College
66 [1 + sqrt(9)! ] x 9 + sqrt(9) Matt Agnew 7 Wilson Central Junior High, West Lawn, PA
66 (sqrt9!)*(9+1)+sqrt9! Michael Falls 6 Raymond Park Middle School
66 (-1 +9)(9) - (sqrt9)! Lisa Gardner 3 Boyette Springs ES
66 (sqrt9)! x(9+1)+(sqrt9)! Angela Rosiello 7 St.Jude School, Brooklyn, NY
67 (1+sqrt9)^(sqrt9)+(sqrt9) Wendy Cheung 10 The Bishop Strachan School
67 (sqrt9 + 1)^sqrt9 + sqrt9 Mario Correia 8 Chester M. Stephens Mt. Olive Middle School
67 (sqrt9+1)^(sqrt9)+sqrt9 Michael Falls 6 Raymond Park Middle School
67 (1+sqrt9)^sqrt9 + sqrt9 Keri Lewis 8 Kickemuit Middle School-Warren,RI
67 (sqrt9+1)^(sqrt9)+(sqrt9) Ms. Stonequist's Math Class 6 Marie Murphy School
68        
69 (sqrt9)! *(9+1)+9 Michael Falls 6 Raymond Park Middle School
69 (-1+9)(9) - sqrt9 Lisa Gardner 3 Boyette Springs ES
69 (sqrt9)!(9+1)+9 Niah Murray 8 St.Jude School, Brooklyn, NY
70 (sqrt9!)!/9-9-1 Michael Falls 6 Raymond Park Middle School
70 (-1-9) + ((sqrt9)!)!/9 Lisa Gardner 3 Boyette Springs ES
70 ((sqrt9)!)!/9-9-1 Pat Malloy 11 Norton High School
70 [(sqrt9)!]!/9-9-1 David Moudy 7 Raymond Park Middle School
70 [(sqrt9)!]!/9-(9+1) David Moudy 7 Raymond Park Middle School

Solutions 1 to 10 Solutions 11 to 20 Solutions 21 to 30
Solutions 31 to 40 Solutions 41 to 50 Solutions 51 to 60
Solutions 71 to 80 Solutions 81 to 90 Solutions 91 to 100
Please notify Judy Ann Brown of any errors.

The Math Forum ** Judy Ann Brown ** 22 December 1998