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A)27×5-(276-8×9)+50

B)70630+134-(1976200-76200)×2


Răspuns :

a)
27×5-(276-8×9)+50=
=27×5-(276-72)+50
=27×5-204+50
=135-204+50
=-69+50
=-19
b)
70630+134-(1976200-76200)×2=
=70630+134-1900000×2
=70630+134-3800000
=70764-3800000
=−3729236