1.Вычислите:
(Решать не кратко!)
a)-4,9+(-24,3)-(-5,1)-(+2,7)
б)-17,42+(-6,83)-(-19,75)
в) (-3 8//13)+(-1 4//13)-9//13  ((это дроби))
г) -(-5 1//18)-3 7//9+1 2//3 ((это тоже))
2.Найдите значение выражения (6 3//4-10 5//8)-(-0,345-0,003).

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