Final answer:
To round 8266 to the nearest ten, you look at the digit in the ones place and round the digit in the tens place up if the digit in the ones place is greater than or equal to 5.
Step-by-step explanation:
To round 8266 to the nearest ten, we look at the digit in the ones place, which is 6. Since 6 is greater than or equal to 5, we round the digit in the tens place up by 1. Therefore, 8266 rounded to the nearest ten is 8270.