Today we are still partitioning numbers to make them easier to work with, however we are subtracting.
Watch the video below.
Now have a go at the sheet. Remember you are only partitioning the second number. When you have partitioned the number into ten's and one's subtract the ten's first. Then subtract the one's, this should leave you with your answer. Look at the example below:
68 - 33 = 68 - 30 - 3
= 38 - 3