Class 2 (ICSE) • MathematicsChapter 3: Subtraction with Regrouping⭐ Topic 2
Practice and Revision - Subtraction with Regrouping
Subtraction with regrouping means borrowing from the tens column when the ones digit being subtracted is bigger, like subtracting 42 - 15.
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When the ones digit we're subtracting is bigger than the ones digit we have, we borrow a ten from the tens column.
Quick revision
Remember these!
- Regrouping in subtraction means borrowing.
- We borrow when the ones digit is too small.
- 42 - 15: borrow, making 12-5=7.
- Then subtract tens: 3-1=2.
- 42 - 15 = 27.
- Regrouping is also called 'borrowing'.
- Practice helps solve subtraction correctly.
- This skill builds on basic subtraction.
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subtraction with regroupingicse class 2