Regrouping
Related Words
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
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?
Choices:
A. 97B. 117
C. 87
D. 107
Correct Answer: D
Solution:

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.
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