Question

Is 8,000 a good estimate for the sum of 3,816 and 467? B.) If it is, explain why it is a good estimate. If it is not, explain why it is a bad estimate.

Answer 1

Terrible estimate.
3816 can be rounded to 4000 and 467 can be rounded to 500. Adding 4000+500 gives 4500, which isn't near 8000.

Answer 2

4,500

The given estimate is bad.

Explanation:

We are determine whether 8,000 is a good estimate for the sum of 3,816 and 467 or not.

First of all, we will round both numbers and then find the sum as:

`3,816\approx 4,000`

`467\approx 500`

Estimated sum:
`4,000+500=4,500`

B. The given estimate is not good estimate because is far away from the actual sum.

The estimate is bad because the numbers are not rounded correctly.