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How many whole numbers have exactly three digits how did you find that out and tell me why that's the answer?
Assuming that 001, 080, etc are not allowed (that is a leading zero or two is not permitted), the smallest number with exactly three digits is 100. The largest number with exactly three digits is 999. So there are 999 - 100 + 1 = 900 numbers with exactly three digits.
How many whole numbers have exactly three digits when 999 is the greatest whole number with three digits is 890 900 990 or 999?
890
How many strings of three decimal digits Have exactly three digits that are 9?
There can be only one.
How many whole numbers have 3 digits?
there are 899 whole numbers that have three digits.
How many strings of three the same digits have exactly three digits that are 9s?
Only 1 exists, and it is "999"
How many strings or three decimal digits have exactly two digits that are 9s?
There are 27 of them.
How many strings of three the same digits have exactly two digits that are 4s?
One: 444!
How many of the three digit numbers that can be made from all of the digits 1 3 and 5 (used only once each) are prime?
None - since the digits used - when added together divide exactly by three. 1+3+5=9... 9/3=3. This means that ANY of the numbers created can be divisible by three.
How many different numbers can be formed with the digits 345?
Assuming you mean permutations of three digits, then the set of numbers that can be made with these digits is: 345 354 435 453 534 543 There are six possible permutations of three numbers.
How many three digits are there in all?
There are 900 three-digit numbers.
How many strings of three decimal digits Have exactly digits that are 4?
-- 893 of them have no 4's. -- Three of them have exactly one 4: 4xx, x4x, and xx4. -- Three of them have exactly 2 4's: 44x, 4x4, and x44. -- One of them has exactly three 4's: 444. -- None has more than three 4's.
How many digits are are used for printing the page numbers of a book that has 115 pages?
Three digits.
