80
You would round it down... to 80.
80
80
80
80
80
80
80
Well, darling, 75 rounded to the nearest 10 is 80. It's not rocket science, honey. Just bump that 5 up to the nearest 10 and call it a day.
75 rounded to the nearest ten is 80
To find the least number that rounds to 80 when rounded to the nearest 10, we need to consider numbers between 75 and 84. The midpoint between 75 and 84 is 79.5. When rounded to the nearest 10, 79.5 rounds up to 80. Therefore, the least number that rounds to 80 when rounded to the nearest 10 is 79.