The 3 in 350 represents 300
because 350=300+50+0, that is: 3 one hundreds +5 tens +0 ones
The 3 in 403, represents 3 because 403 = 400+3 that is 4 one hundreds, 0 tens and 3 ones.
Thus the 3 in the number 350 and the 3 in the number 403 are not the same.
The 3 in the number 350 is one hundred time the 3 in the number 403.
Answer: The 3 in the number 350 is one hundred time the 3 in the number 403.