Answer:
Estimate: 1,020
This is an underestimate
Step-by-step explanation:
To estimate we should round:
81- 80
60- stays 60
6.25- 6
9.25- 9
6x8 = 48 so mentally, 6x80 = 480
9x6 = 54 so mentally, 9x60 = 540
Now add: 480 + 540 = 1020
This would be an underestimate since we rounded everything down
If you would like me to add anything or clarify I would be happy to do that :)