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Use equivalence and compensation to simplify and solve subtraction problems

Year 6 • Maths

Choose a lesson (10)

  1. Explain and represent constant difference for subtraction
  2. Use equivalence and compensation strategies to solve subtraction problems in a range of contexts
  3. Calculate the difference using knowledge of an adjusted subtrahend: difference structure
  4. Solve subtraction calculations mentally by using known facts
  5. Explain how adjusting the subtrahend affects the difference: reduction structure
  6. Explain how constant difference can make written calculations more efficient
  7. Explain how increasing or decreasing the minuend affects the difference
  8. Explain how adjusting the minuend can make mental calculation easier
  9. Use constant difference to balance equations and find unknowns
  10. Explain how adjusting the subtrahend affects the difference: partitioning