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120 +2×15÷75+4×20-40×5÷80

Răspuns :

120+2×15÷75+4×20-40×5÷80
120+30÷75+80-200÷80
120+0.4+80-2.5
120.4+80-2.5
200.4-2.5= 197.9

Sper ca te.am ajutat!