To estimate the total number of miles Mr. Cervantes drove in December and January, we can round the miles to the nearest thousand.
For December:
- 3,156 rounds to 3,000.
For January:
- 8,099 rounds to 8,000.
Now, we can add these rounded figures: 3,000 + 8,000 = 11,000 miles.
So, the total estimated miles is 11,000.
Next, we can check additional rounding estimates:
- 3,156 can also round to 3,200 (to the nearest hundred),
- 8,099 can round to 8,100 (to the nearest hundred).
Adding these: 3,200 + 8,100 = 11,300 miles.
Considering these estimates, the good estimates for the total number of miles Mr. Cervantes drove for both months by rounding by place values are:
- 11,000 miles
- 11,300 miles
Thus, the acceptable response choices are:
- 11,000 miles
- 11,300 miles