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Column addition and subtraction with 4-digit numbers

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Threads

Why this why now

This unit extends pupil's understanding of column addition and subtraction to working with 4-digit numbers. They will also consider strategies to improve efficiency when solving calculations and consider the composition of 4-digit numbers. This gives pupils a range of ways of thinking about numbers, addition and subtraction that they can apply to future learning.

Prior knowledge requirements

  • Understand place value to 1000
  • Use column methods for 2- and 3-digit numbers
  • Recall number facts and number bonds

Threads

Why this why now

This unit extends pupil's understanding of column addition and subtraction to working with 4-digit numbers. They will also consider strategies to improve efficiency when solving calculations and consider the composition of 4-digit numbers. This gives pupils a range of ways of thinking about numbers, addition and subtraction that they can apply to future learning.

Prior knowledge requirements

  • Understand place value to 1000
  • Use column methods for 2- and 3-digit numbers
  • Recall number facts and number bonds