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Subtract three-digit numbers for Class 3

Taking away numbers to 1000 with exchanges, one worked example step by step, and 5 questions to try. No timer, no account.

What it means

To take away a three-digit number, work place by place: ones, then tens, then hundreds. When the top digit is too small, exchange one of the next place for ten of this place, just like borrowing with two-digit numbers.

Worked example: 523 - 267

  1. 1Ones: 3 is smaller than 7. Exchange 1 ten for 10 ones: now 1 ten and 13 ones. Take away: 13 - 7 = 6.
  2. 2Tens: 1 is smaller than 6. Exchange 1 hundred for 10 tens: now 4 hundreds and 11 tens. Take away: 11 - 6 = 5.
  3. 3Hundreds: 4 - 2 = 2.
  4. 42 hundreds, 5 tens and 6 ones.

After both exchanges, the ones become 13, the tens become 11 and the hundreds become 4. Answer row in orange.

So 523 - 267 = 256.

Practice 5 questions

Question 1 of 5

Printable worksheets

Prefer paper? These sheets print on A4 and each has an answer key on the last page.

Subtract three-digit numbers - Class 3
Free printable PDF, with an answer key for grown-ups.PDF

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