What is 9.66 rounded to the nearest tenth

9.66

^ This is the tenths place.

Look at the number after it, if it's 5 or more we round up, if it's 4 or less we round down.

The number is 6, so we round up to 9.7.

9.7, because. 66, the 6 in the 100 place rounds to 7, because five and higher round up and 4 and lower round down, another example of this is 23, which rounds down to 20, and 47 rounds up to 50