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.
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.
999
Both are a way of describing the purity of the gold bullion. Karats are measured by mass. Thus, if you had 24 grams of gold and all of it was gold i.e. pure, it would be 24 karat gold. If I had 24 grams of gold and 22 grams of it was gold, the other 2 grams being copper for instance, the bullion would be 22 karats. Fineness is a more modern and accurate way of describing purity and is measured as parts per thousand. So 999 actually means 999 parts per thousand. It can also be described as 9990 or 'three nines' pure gold. It equates to 99.90% pure gold. Anything above this is considered 24 karat gold. So if you are looking to buy gold bullion, 24 karat or 999 are acceptable and good choices.
99.93 - 99.9 _______ = .03 more silver
a lot of money
.9999 is 10 times purer (10 times less impurities).
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.
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.
9999 - 999 = 9000
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
The sum of all numbers between 1 and n = n*(n+1)/2 The sum of all numbers between 1 and 999 = 999*1000/2 = 499500 The sum of all numbers between 1 and 9999 = 9999*10000/2 = 49995000 So, the sum of all numbers between 1000 and 9999 = 49495500
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
1 - even numbers in 1...9999 interval 9999 divided by 2 is 4999 2 - even numbers in 1..999 interval 999 divided by 2 is 499 Doing (1) - (2) = 4999 - 499 = 4500 even numbers in that interval.