Class 2 (ICSE) • MathematicsChapter 2: Addition with Regrouping⭐ Topic 1
Addition with Regrouping
Addition with regrouping means carrying over extra tens when adding two-digit numbers, like adding 27 + 15.
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When we add the ones digits and the total is 10 or more, we regroup by carrying a ten over to the tens column.
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Remember these!
- Regrouping means carrying over extra tens.
- We regroup when ones digits total 10 or more.
- 27 + 15: 7+5=12, write 2, carry 1.
- Then add tens: 2+1+1=4.
- 27 + 15 = 42.
- Regrouping helps add two-digit numbers.
- Practice builds confidence with addition.
- Regrouping is also called 'carrying'.
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addition with regroupingicse class 2