3 digit Subtraction - regrouping tens & hundreds
Now, these are tricky!
What happens if the units AND the tens are smaller on the top than they are on the bottom?
Well, you have to regroup twice! Borrow from the tens and complete the units subtraction first. Then borrow from the hundreds and complete the tens subtraction.
It sounds complicated! Watch the video below, and hopefully it will help.
P.S. You don't have to do the extension worksheets - only if you enjoy the challenge!