What are the smallest and largest whole numbers that round to 50 when rounded to the nearest ten?

Answer 1

50

Answer 2

Half of 10 is 5, therefore all numbers in the range:

50 - 5 ≤ the number < 50 + 5

that is:

45 ≤ the number < 55

round to 50 to the nearest 10.

So the smallest whole number is 45 and the largest is 54.