The only difference between 999 gold and 999.9 is that 999.9 is .9 more pure than 999. There is very little difference between the two numbers and both are very high quality.
The difference is almost unmeasurable in terms of real value. Minting companies have used the extra 9 as a means to increase perceived value and show off refining technology which is somewhat of a marketing ploy really. Gold refined at 9999 was introduced by the Canadian Mint in the 1980's, in fact some coins produced in 1979 and 1980 at .999 are rumoured to be have a higher purity than the current issues of .9999.
24karat gold - pure gold
The mass of 9999 pure gold you get from 1 gram of gold ore is minute. For example, 30g of gold can be extracted from an 860kg block of gold ore.
9999 % gold means the purity of the gold and it can't be 10000% gold because it has some things contain something than gold. It can't be 100% pure. Hope I helped Good luck on buying gold bars!!
999
.9999 is 10 times purer (10 times less impurities).
The difference is almost unmeasurable in terms of real value. Minting companies have used the extra 9 as a means to increase perceived value and show off refining technology which is somewhat of a marketing ploy really. Gold refined at 9999 was introduced by the Canadian Mint in the 1980's, in fact some coins produced in 1979 and 1980 at .999 are rumoured to be have a higher purity than the current issues of .9999.
If by "between" you mean "between but not including", then the answer is 9999 - 999 - 1 = 8999.If on the other hand, you mean to include both 9999 and 999, then the answer is 9999 - 999 + 1 = 9001.
A USPS priority mail tracking number looks like either all numbers (9999 9999 9999 9999 9999) or a combination of numbers and letters (EA 999 999 999 US).
A big number
9999 ÷ 10 = 999.9 Or 999 remainder 9
9,989,001
9999 - 999 = 9000
his story was in the who cares era, in a summer of 9 99 999 9999 9999 9999 9999 years ago.
from 1000 to 9999, ie 9999 - 999 = 9000
9999 gold necklace with a 9999 gold cross price tag
999/9 = 100