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4. Calculati:
a) – 121-17:[(93: 3-3):2].50;
b) -2.{3-[-(2.3+6:2)+(-2)–7]}
c) -2.{2-3. [-6:3–9: (3:1-12)]}​


Răspuns :

Răspuns:

a) 104:[31-3] ÷2]×50

104:(28÷2)×50

104÷7×50

14×50

700