← Back to the activity

Year 3 Maths — Subtracting 3-digit numbers

Take one number up to 999 away from another, borrowing a ten or a hundred where you need to.

Name: ________________________

  1. 1.What is 1000 - 1?

  2. 2.Sort each subtraction by whether the ones column has to borrow a ten.

    Groups: No borrowing · Borrowing needed

    • 365 - 140
    • 641 - 129
    • 586 - 243
    • 472 - 128

  3. 3.586 - 243 = ?

  4. 4.Which subtraction gives 200?

    • a) 450 - 250
    • b) 350 - 250
    • c) 400 - 250
    • d) 500 - 250

  5. 5.Put these subtractions in order, smallest answer first.

    • 600 - 250
    • 300 - 250
    • 400 - 300
    • 500 - 350

  6. 6.Match each subtraction to its answer.

    • 300 - 100
    • 450 - 120
    • 625 - 25
    • 810 - 400
    • 600
    • 200
    • 410
    • 330

  7. 7.Tap where 700 - 350 lands.

    Mark the line with an X.

    250300350400450

  8. 8.Tap where 480 - 30 lands.

    Mark the line with an X.

    400420440460480500

Answer key — Year 3 Maths — Subtracting 3-digit numbers

  1. 1. 999
  2. 2. 586 - 243 → No borrowing; 472 - 128 → Borrowing needed; 365 - 140 → No borrowing; 641 - 129 → Borrowing needed
  3. 3. 343
  4. 4. a) 450 - 250
  5. 5. 1. 300 - 250 2. 400 - 300 3. 500 - 350 4. 600 - 250
  6. 6. 300 - 100 → 200; 450 - 120 → 330; 625 - 25 → 600; 810 - 400 → 410
  7. 7. 350
  8. 8. 450