Definition of Regrouping
Regrouping is reorganizing the formation of the group
More about Regrouping
- Regrouping is used to assist while performing addition and subtraction
Example of Regrouping
Subtract 9 from 25.
- To subtract 9 from 25, we first arrange the blocks and then divide one of the tens blocks in ten unit blocks
Video Examples: Regrouping Whole Numbers
The filled blocks are 9 as they are to be subtracted.
When subtracted 9 from 25 we are left with 16. That is,
Solved Example on Solved Example on Regrouping
Ques: Mathew collected 120 postal stamps. He gave 13 to his friend. How many stamps was he left with?
Correct Answer: D
Step 1: Number of stamps Mathew collected = 120
Step 2: Number of stamps Mathew gave to his friend = 13
Step 3: Number of stamps left = Number of stamps collected - Number of stamps given to his friend
Step 4: Therefore, Mathew was left with 107 stamps.