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Calcul mental

Calcul mental. 20 secondes par calcul. M. EL HANI. 1 er calcul :. 7×(4 + 5) =. 9×(3 + 4) =. 2 ème calcul :. (15 – 7)×7=. (16 – 9)×8 =. 3 ème calcul :. 25 – 11 – 10 =. 45 – 12 – 11 =. 4 ème calcul :. 17 – (12 – 4 )=. 24 – (14 – 8) =. 5 ème calcul :. 25 : 5 : 5 =. 36 : 6 : 2 =.

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Calcul mental

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  1. Calcul mental 20 secondes par calcul. M. EL HANI

  2. 1er calcul : 7×(4 + 5) = 9×(3 + 4) =

  3. 2ème calcul : (15 – 7)×7= (16 – 9)×8 =

  4. 3ème calcul : 25 – 11 – 10 = 45 – 12 – 11 =

  5. 4ème calcul : 17 – (12 – 4 )= 24 – (14 – 8) =

  6. 5ème calcul : 25 : 5 : 5 = 36 : 6 : 2 =

  7. 6ème calcul : 5 + 12 : 3 = 8 + 15 : 3 =

  8. 7ème calcul : 8×6 – 4×5 = 6×8 – 5×4 =

  9. 8ème calcul : 5×(8 – 4)×3 = 6×(9 – 4)×3 =

  10. 9ème calcul : Le double de la moitié de 2142 Le double de la moitié de 4354

  11. 10ème calcul : (47 – 6×5)×2 = (57 – 8×5)×2 =

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