87392 to the nearest 10

87392 can be rounded to

87390 or 87400.

The difference between 87392 and 87390 is

87392 - 87390 = 2

The difference between 87392 and 87400 is

87400 - 87392 = 8

87392 is closer to 87390 because the difference between these two numbers is smaller.

You also can use rule:

To round a number to the nearest 10, look at the units digit. If the units digit is 5 or more, round up. If the units digit is 4 or less, round down.

3900

3900 rounded to the nearest 10 is 3900. This is because the digit in the units place is 0, which is less than 5. Therefore, you don't need to round up.

87390

87390 rounded to the nearest 10 is 87390. This is because the digit in the units place is 0, which is less than 5. Therefore, you don't need to round up.