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Calcul mental.

Calcul mental. Questions 1 à 10 : 20 secondes par calcul. Questions 11 à 20 : 30 secondes par calcul. M. EL HANI. 1 er calcul :. 8 - 11 =. 7 - 12 =. 2 ème calcul :. -3 - 9 =. -4 - 8 =. 3 ème calcul :. -8 - 17 =. -7 - 19 =. 4 ème calcul :. 242 - 25=. 257 - 19 =.

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Calcul mental.

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  1. Calcul mental. Questions 1 à 10 : 20 secondes par calcul. Questions 11 à 20 : 30 secondes par calcul. M. EL HANI

  2. 1er calcul : 8 - 11 = 7 - 12 =

  3. 2ème calcul : -3 - 9 = -4 - 8 =

  4. 3ème calcul : -8 - 17 = -7 - 19 =

  5. 4ème calcul : 242 - 25= 257 - 19 =

  6. 5ème calcul : -12 + 8 = 17 - 13 =

  7. 6ème calcul : 20 - 44 = 30 - 59 =

  8. 7ème calcul : 18 - 27 = 17 - 26 =

  9. 8ème calcul : -8,5 - 11 = -7,5 - 12 =

  10. 9ème calcul : -1,5 - 2,7 = -1,7 - 1,3 =

  11. 10ème calcul : 1,34 - 4,5 = 1,32 - 4,4 =

  12. 11ème calcul : -8 + 4 + 9 = -7 + 2 + 8 =

  13. 12ème calcul : -3 - 9 + 11 = -8 - 2 + 13 =

  14. 13ème calcul : Le double de la moitié de 2142 Le double de la moitié de 4354

  15. 14ème calcul : -4 - 5 - 6 - 7 = -3 - 5 - 4 - 7 =

  16. 15ème calcul :

  17. 16ème calcul : -20 + (18 - 14) = -20 + (17 - 13) =

  18. 17ème calcul : -2 + (2 - 7) = -4 + (3 - 8) =

  19. 18ème calcul : -2,1 + 2,01 = -4,2 + 4,02 =

  20. 19ème calcul :

  21. 20ème calcul : 7×(-8 + 15) = 8×(-7 + 16) =

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