72 is already "the nearest whole number", no need for any rounding. The answer is: 72.
100.
95,96,97,98,99 round them up to the ten, all 100 to the 100, all 100.
To round 95 to the nearest ten, you would round it down to 90.
170 is already at the nearest ten. It will round up to 200 to be to the nearest 100.
100
100
72 is already "the nearest whole number", no need for any rounding. The answer is: 72.
round 90 to the nearest ten
372 rounded to the nearest hundred is 400
Since 72 is an integer, it is already rounded to the nearest fractional part.
300
645 rounded to the nearest ten would simply be 650.
That rounds to zero.
100
100
10100