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Column addition and subtraction with 4-digit numbers

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Why this, why now

In this unit pupils will consolidate column addition with regrouping and column subtraction with exchanging to solve problems. They will use known facts and strategies to accurately and efficiently calculate and check.

Prior knowledge requirements

  • Ardaydu waa inay yaqaanaan aasaaska maadada.
  • Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 5 / 25

Column addition and subtraction with 4-digit numbers

In this unit pupils will consolidate column addition with regrouping and column subtraction with exchanging to solve problems. They will use known facts and strategies to accurately and efficiently calculate and check.

5 lessons
  1. Explain how many '100s' and '200s', 1,000 is composed of
  2. Explain how many '500s' and '250s', 1,000 is composed of
  3. Subtract 4-digit numbers using column subtraction
  4. Add up to 3 four-digit numbers using column addition
  5. Pupils use strategies to make solving calculations more efficient