Class 3 (CBSE) • MathematicsChapter 2: Toy Joy⭐ Topic 1
Addition of 3-Digit Numbers
We learn to add three-digit numbers, like 245 + 132, adding ones, tens, and hundreds step by step.
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See the pattern
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Try it out
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Fun picture
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Learn the idea step by step
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To add 3-digit numbers, we add ones first, then tens, then hundreds. For 245 + 132: ones are 5+2=7, tens are 4+3=7, hundreds are 2+1=3, giving 377.
Quick revision
Remember these!
- Add ones first, then tens, then hundreds.
- 245 + 132 = 377 (no carrying needed).
- Carrying happens when a place value totals more than 9.
- 267 + 158 = 425, with carrying in both ones and tens.
- Carrying can move from ones to tens to hundreds.
- Practice builds confidence with bigger addition.
- 3-digit addition is used in daily life for larger totals.
- Checking work helps catch addition mistakes.