Class 3 (CBSE) • MathematicsChapter 2: Toy Joy⭐ Topic 2
Subtraction of 3-Digit Numbers
We learn to subtract three-digit numbers, like 458 - 213, subtracting ones, tens, and hundreds step by step.
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Learn the idea step by step
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To subtract 3-digit numbers, we subtract ones first, then tens, then hundreds. For 458 - 213: ones are 8-3=5, tens are 5-1=4, hundreds are 4-2=2, giving 245.
Quick revision
Remember these!
- Subtract ones first, then tens, then hundreds.
- 458 - 213 = 245 (no borrowing needed).
- Borrowing happens when we need more from the next place.
- 342 - 156 = 186, with borrowing in multiple places.
- Borrowing can happen from tens and hundreds too.
- Practice builds confidence with bigger subtraction.
- 3-digit subtraction is used for real problems like price differences.
- Checking work helps catch subtraction mistakes.