How many three digit numbers are multiples of 20?

Answer 1

To find how many three-digit numbers are multiples of 20, we need to determine the range of three-digit numbers divisible by 20. The smallest three-digit number divisible by 20 is 100, and the largest is 980. To find the count of numbers in this range, we can divide the largest number by 20 and subtract the result of dividing the smallest number by 20, then add 1 to account for the inclusive range. Therefore, the number of three-digit multiples of 20 is (980/20) - (100/20) + 1 = 49 - 5 + 1 = 45.

Answer 2

20, 40, 60, 80, 100, 120, 140, 160, 180, 200 . . .

Answer 3

Factors go into numbers, numbers go into multiples.

The factors of 20 are 1, 2, 4, 5, 10, 20

The multiples of 20 are 20, 40, 60, 80, 100 and so on.

Answer 4

1,2,4,5,10,20

Answer 5

Infinitely many.

Answer 6

There are 45 of them.