When rounding to the nearest ten, a number will round up if its ones digit is 5 or more, and down if it's less than 5.

Since we're looking for the greatest possible value of a number that rounds to 80, we want the highest number that would still round down to 80.

This would be a number with a ones digit of 4, because 5 or more would round up to 90.

So, the greatest possible value of a number that rounds to 80 is 84.

Question

When rounding to the nearest ten, a number will round up if its ones digit is 5 or more, and down if it's less than 5.

Since we're looking for the greatest possible value of a number that rounds to 80, we want the highest number that would still round down to 80.

This would be a number with a ones digit of 4, because 5 or more would round up to 90.

So, the greatest possible value of a number that rounds to 80 is 84.

Knowee AI · Accepted Answer

When rounding to the nearest ten, a number will round up if its ones digit is 5 or more, and down if it's less than 5.

Since we're looking for the greatest possible value of a number that rounds to 80, we want the highest number that would still round down to 80.

This would be a number with a ones digit of 4, because 5 or more would round up to 90.

So, the greatest possible value of a number that rounds to 80 is 84.

A whole number when rounded to the nearest ten is 80.What is the greatest possible value of this number?Use the number line below to help you.