A city has a population of 743,182 people. WHATS IS THE VALUE OF THE DIGIT 3?

Well let's remember the place values in order to solve this
Hundred thousands, Ten thousands, Thousands, Hundreds, Tens, Ones
(Notice how the 3 is in the thousands place)
Now lets separate these place values from the number shown in the question
700,000 + 40,000 + 3,000 + 100 + 80 + 2
As we see up there ^. The thousands place shows the number 3,000
3,000 is your answer
If you break it down the 3 it is in the thousands place. You take all the numbers after 3 and make them 0’s and you’ll find that the value of 3 is 3,000.