A Math Forum Project

Rules of the Game: Use only the digits 1, 9, 9, and 9, in any order, with the operations +, -, x, ÷, ^(raised to a power), sqrt (square root), and ! (factorial), to write expressions for the counting numbers 1 through 100. Grouping symbols may also be used, but two-digit numbers such as 19, 91, 99 may NOT be used. Write your answers in the boxes above, using no equal signs. Correct format: (1 + 9) x 9 + 9. Incorrect format: 1 + 9 = 10 x 9 = 90 + 9 = 99.

1999 Mathematics Game and submission form.

Student Manipulative Worksheet