502
499 and 101.
To make a 500 dilution, add 1 part of the substance you are diluting to 499 parts of water. For example, if you have 1 mL of the substance, you would add 499 mL of water to make a total volume of 500 mL for the dilution.
-499
499 + 500 = 999
The iPad 3 starts at $499 (US).
3 499
three thousand
499.3333
4567
499 is a prime so it is only divisible by 1 and 499.
499-199 is equal to 300.
499 take away 199; 499-100=399 then; 399-99=300