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Calculati:
a) (16×12^10-4×12^10):12^11


Răspuns :

(16 · 12¹⁰ - 4 · 12¹⁰) : 12¹¹ =
12¹⁰ · (16 - 4) : 12¹¹ =
12¹⁰ · 12 : 12¹¹ = 
12¹⁰⁺¹ : 12¹¹ = 
12¹¹ : 12¹¹ = 
12¹¹⁻¹¹=
12⁰ =