100 of them.
There are 30 multiples of 30 that fall between 100 and 1,000.
110.
69342
Ten of them.
297
The first 10 multiples of 100: 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000
Yes, the metric system is based on multiples of 10. Prefixes such as kilo (1000), centi (1/100), and milli (1/1000) are used to represent different magnitudes within the system.
128!
545
Smallest multiple of 7 greater than 100 is 15 Largest multiple of 7 less than 1000 is 142 So number of multiples of 7 = 142 - 15 + 1 = 128
100, 200, 300, 400, 500, 600, 700, 800, 900, 1000