How many odd numbers between 1 to 199?

There are 100 odd numbers between 1 and 199. This can be calculated by dividing the total range (199 - 1 = 198) by 2, as odd numbers are spaced every two integers. Therefore, 198 divided by 2 equals 99, representing half of the odd numbers in the range. Multiplying this by 2 gives us the total count of odd numbers, which is 100.