would 1,661.06 turn into 1,661 if I rounded it to the nearest tenth ?

No.

1,661.06 = 1,661.1

Oh I was looking at just the 0. I understand Thank you!

You're welcome.

No, rounding 1,661.06 to the nearest tenth would result in 1,661.1, not 1,661. The rule for rounding to the nearest tenth is as follows:

- If the hundredth digit is less than 5 (0, 1, 2, 3, or 4), you round down.
- If the hundredth digit is 5 or greater (5, 6, 7, 8, or 9), you round up.

In this case, the hundredth digit is 0, which is less than 5. Therefore, you round down. So, rounding 1,661.06 to the nearest tenth would give you 1,661.0.