stop checked items from moving to the bottom

Hello 1225Carol.

Thanks for using the Apple Support Communities!

I see form your post that you want to prevent Notes for sorting checked items to the bottom of the list when working with a to-do list.

To change this setting, on your iPhone, do the following:

1. Go to Settings, and scroll down to Notes.
2. Tap Notes, and scroll down to the Viewing section.
3. In the Viewing section, tap "Sort Checked Items".
4. Change the option to "Manually".

This will make sure that the items stay in the list as ordered and will not move when they are checked.

I hope this information helps you!

Cheers.