As given they are the same value, but...but...the 9.9 opens the possibility that the actual value is more or less than 9.90. In other words, because it lacks that zero on the end, it could be, say, 9.91 and someone just rounded it to 9.9.
990 is ten times as much as 99 .1,089 would be ten times bigger.
It is 990/10 = 99.
There are 99 tens in 990.
990 cm.
.99 * * * * * That is the decimal equivalent. The simplified ratio for 990/1000 is 99/100
The result of 110565 times 99 divided by 990 is 11115.
10 times 99 = 990 is one example
99 decameters is 990 meters.
990
990
It is: 990
99