999 + 999/999
999
8,999,999,999,999,999,999,999,999,999,999,999,999,999,999,991 (8 quattuordecillion, 999 tredecillion, 999 duodecillion, 999 undecillion, 999 decillion, 999 nonillion, 999 octillion, 999 septillion, 999 sextillion, 999 quintillion, 999 quadrillion, 999 trillion, 999 billion, 999 million, 999 thousand and 991)
The sum 9 + 99 + 999 + 9999 + 99 999 + .... where the last number to be added consists of nine digits of 9 becomes: (10 – 1) + (100 – 1) + (1000 – 1) + (10 000 – 1) + ... where the last multiple of 10 has nine zeros. There are nine pairs of brackets altogether. Add the multiples of 10 first and then subtract 9: The digit 1 appears 9 times in the final answer.
999 + (9/9) = 1000
9 999 999 999
999 + 999/999
9 999 999 999 999 999 999 999 999 la puterea 12= 1,0 × 10300
111
999 + 999/999 = 1000
99 999 999 980 000 000 001
999 MOD 1000 = 999
( 9+9+9) / (9+9+9)= 1 or 999 /999 = 1
9, 010, 000 comes one after 9, 009, 999.
0.009
.9 billion = 900,000,000999,999,999 > 900,000,000
999 = 9*103 + 9*102 + 9