One possible answer is 1 times 99.
11 times 9 or 10 times 9 plus 9
(15+7) +99
9.9498743710661995473447982100121
3 times 33 equals 99.
3 times 33
99 divided by 9 equals 11
11 times 9 equals 99
5 times 99 equals 495. There are several other answers.
49.5
3x99
99 divided by 10 equals 9.9
198 divided by 2 equals 99. 99 times 2 equals 198.
9.94987 (rounded)