Mathématiques

Question

A developper:
1......(45+12) *[ ( -15) +25 ] =
57*[ (-15) +25] =
57 * 10=
570


(79 -38 ) (17 -31)=
41 * (-14)=
-574

7/11 + 26/11 = 33/11 = 3

1 Réponse

  • 1......(45+12) *[ ( -15) +25 ] =
    57*[ (-15) +25] =
    57 * 10=
    570

    juste


    (79 -38 ) (17 -31)=
    41 * (-14)=
    -574

    juste

    7/11 + 26/11 = 33/11 = 3


    juste

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