Rounded to the nearest ten, 497 is approximately equal to 500.
500
500
500
500
There are infinitely many numbers in the range [495, 505].
639.0
60
It is then 740 when rounded to the nearest ten.
30
36,184 rounded to the nearest ten thousands place is 40,000.
2602 rounded to the nearest ten is 2600.
320
20
260