Early stages of using a written method for subtraction. Remember to use the help button to understand this method.
This written method is like taking too much away and then adding some back. An early stage in understanding written methods.
This looks a really complicated method and requires partitioning the numbers. View the help to get more info.
This is the written subtraction method most of us are used to using.
Practice at using the standard written method of subtraction before trying it on paper.