Forestdale Primary School

Believe - Aspire - Excel


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Lesson 4: L.I. Subtract numbers mentally


Warm up:

Counting from 0 in multiples of 50

Chant through in 50s from 0 upwards.

Chant in 50s from 55 onwards. Can we chant in 50s from 10 onwards?

What do we notice?




subtracting 9 (use number square if needed and teach new pattern, up one square and right one square) Children to understand that you subtract 10 then add 1.


What patterns do you notice in your answers?




Task: complete worksheet from workpack subtracting 9 from 3 digit numbers.


Awards we have received so far.

  • Primary Science
  • Healthy Schools
  • Health for Life
  • Artsmark Award
  • EEF
  • Big Lottery Fund
  • Music Mark