34,920 Round to the nearest ten thousand

35,000 because you just take the number next to it and if its greater then 4 you round up and if its less you keep it the same and make everything else 0

With 34920 it would be 30000 because if you look at the ten thousand spot (which is where the three is) the thousand spot (which is where the 4 is) is not 5 or above, therefore making the number get rounded down to 30000