-3
The multiples of 10 are numbers that can be evenly divided by 10. In the case of 3-digit multiples of 10, the smallest 3-digit multiple of 10 is 100 (10 x 10), and the largest 3-digit multiple of 10 is 990 (10 x 99). Therefore, the 3-digit multiples of 10 range from 100 to 990, inclusive.
3,6,9,12,15,18,21,24,27,30,33,36,39,42are multiples of 3 5,10,15,20,25,30,35,40,45,50,55,60,65,are multiples of 5
95, is the two digits after the last digit of the multiple of 5's.
There are 720 of them.
Oh, dude, let me break it down for you. So, to find the number of 3-digit multiples of 5, you just gotta figure out the first and last numbers that are multiples of 5 in the 3-digit range, which are 100 and 995. Then you just do some simple math, like subtracting and dividing, and voila, you'll get your answer. It's like counting candy, but with numbers.
lcm(2, 3, 5) = 30 → 2 digit common multiples are 30, 60, 90.
Multiples of 30 from 120 to 990
-3
30, 60 and 90.
There are none.
The multiples of 10 are numbers that can be evenly divided by 10. In the case of 3-digit multiples of 10, the smallest 3-digit multiple of 10 is 100 (10 x 10), and the largest 3-digit multiple of 10 is 990 (10 x 99). Therefore, the 3-digit multiples of 10 range from 100 to 990, inclusive.
There are 720 of them. The three digit counting numbers are 100-999. All multiples of 5 have their last digit as 0 or 5. There are 9 possible numbers {1-9} for the first digit, There are 10 possible numbers {0-9} for each of the first digits, There are 8 possible numbers {1-4, 6-9} for each of the first two digits, Making 9 x 10 x 8 = 720 possible 3 digit counting numbers not multiples of 5.
There are 2000 4-digit numbers that are multiples of 5, so, instead of listing them all, it is equally valid to say: Any4-digit number whose final digit is either a 5 or a 0 is a multiple of 5. Get Right? :P
-4
2250
3,6,9,12,15,18,21,24,27,30,33,36,39,42are multiples of 3 5,10,15,20,25,30,35,40,45,50,55,60,65,are multiples of 5