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12×10:4+(180-20):8+(202:2+33×3):100

Răspuns :

12x10:4+(180-20):8+(202:2+33x3):100
12x10:4+160:8+(101+99):100
120:4+20+200:100
30+20+2
50+2
52
12x10:4+(180-20):8+(202:2+33x3):100=12x10:4+160:8+(101+99):100=12x10:4+160:8+200:100=120:4+20+2=30+20+2=52