9999 = 9999 It does NOT equal '1' 1 = 1 9999 ~ 10,000 (ten thousand)
9999
9999
9999
9999 9999
It is 9999 (if a one is added, it becomes a five digit number: 9999 + 1 = 10,000)
999/9 = 100
9999.....9999.99
The largest 4-digit number is 9999 or -9999
1 plus 9,999 equals 10,000. That is equal to 1,000 x 10.
9999
from 1000 to 9999, ie 9999 - 999 = 9000