1. How to do Subtraction with Regrouping
By: Ashley and Miles

2. Step 1
First look at your subtraction problem below and see if you need to regroup.
782
-579 ?

3. Step 2
Now we begin to regroup, we start with the ones place it is the one that is (pink). First we take the 8 and take a ten from the 8 then make the 8 a 7. and then add that to the 2 in the ones place and add that 10 and the 2 to get 12. Now subtract the 12 from the 9 and that equals 3.
782
-579 3
This helps me to regroup by highlighting the numbers.

4. Step 3
Second, we go to the tens (black). Now lets go to the tens place. This part does no require regrouping. Now we subtract the 7 from 7 and that equals 0.
7 12
782
-579 03
This helps me by slashing out the numbers I already used.

5. Step 4 Finally we do the hundreds place ( Green). Now we subtract the
the 7 from the 5 and equals 2. -

6. Check by adding 1
782
572
203
203
579
782

7. recommendation I recommend this strategy because you can check by adding and learn a lot to. I also find it easier to regroup and that is why we recommend this strategy.