Your child 5-11 years

Practice mental math at CM1

Practice mental math at CM1


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To progress, nothing beats training! This sheet CM1 "For Monday, I know ..." will allow you to propose one exercise per week to your schoolboy. The order takes into account the desired progression. However, do not hesitate to go back to refresh your memory!

For Monday, I know ...

  • Week 1. Count 2 in 2 and 5 in 5 from 0, then from 1.
  • 2. From a given number (for example 14) count from 10 to 10, from 100 to 100.
  • 3. Know the addition tables from 0 to 5 by heart.
  • 4. Knowing the addition tables from 0 to 9 by heart.
  • 5. Multiply by 10 any number.
  • 6. Multiply by 100 any number.
  • 7. Know by heart the multiplication tables from 0 to 2.
  • 8. Know the complement to the top ten of any number.
  • 9. Calculate double or half of any number less than 100.
  • 10. Add or remove a dozen to any number.

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