3000 minus 900 = 2100
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900
Roman Numeral for: 3000=MMM CM=900 Therefore: 3900=MMMCM
There are 900 three-digit numbers, all of which are between 99 and 3,000.
99 = 2 100 to 999 = 900 x 3 = 2700 1000 to 1999 = 1000 x 4 = 4000 2000 to 2999 = 1000 x 4 = 4000 3000 = 4 10,706
3000 = (100*3000) % = 300,000%