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!. addition
2. subtraction
3. division
4/ mulitiplication

2007-09-05 08:46:33 · 8 answers · asked by David C 1 in Science & Mathematics Mathematics

8 answers

There are probably dozens of ways to do this, several of which have been given.
To make it more interesting and minimizing the number of operations involved:

Using only one operation:
999 / 9.99 = 100

Using zero operations:
............._
99.9999 = 100
(Ignore the periods. The last 9 is meant to have a line over it representing a repeating decimal)

2007-09-05 08:55:53 · answer #1 · answered by Scott R 6 · 2 0

9 x 9=81 2 nines 81+9=90 3 nines 90+9 4 nines 9/9=1 6 nines. 99+1=100 !!! yay

2016-04-03 05:06:34 · answer #2 · answered by Anonymous · 0 0

9*9+9+9+9/9 = 81 + 18 + 1 = 100

2007-09-05 08:53:50 · answer #3 · answered by Anonymous · 0 0

9*9 = 81 + 9 = 90 + 9/9 = 91 + 9 =100

2007-09-05 08:50:28 · answer #4 · answered by civil_av8r 7 · 1 0

100 = 99 - 9 + 9 + 9/9
100 = 9*9 + 9 + 9 + 9/9

2007-09-05 08:51:48 · answer #5 · answered by Christophe G 4 · 0 0

(9*9)+(9/9)+9+9=81+1+18=100

2007-09-05 09:06:49 · answer #6 · answered by fatima m 1 · 0 0

99+9-9+(9/9)

2007-09-05 08:53:30 · answer #7 · answered by Koozie the chemist 4 · 0 1

99 + (99/99) = 100

2007-09-05 08:52:54 · answer #8 · answered by Mathsorcerer 7 · 0 1

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