16,500 rounded to the nearest ten thousand
The next larger ten thousand is 20,000 .The next smaller ten thousand is 10,000 .16,500 is closer to 20,000 than it is to 10,000 .So 20,000 is the nearest ten thousand.
16,500 rounded to the nearest ten thousand would be 20,000 because 6 is bigger the 1,2,3, and 4 so you round up. so 1 rounded up one would be 2