57×{[325÷(2^2+3^2)]-5}÷(275-4^4)

Răspuns :

57×{[325÷(2^2+3^2]-275-4^4)=
57
×{[325÷(4+9]-275-256)=
57
×{[325÷13-19)=
57×(25-19)=
57×6=342
57×{[325÷(2^2+3^2)]-5}÷(275-4^4)= =57×{[325÷(4+9)]-5}÷(275-256)=
=57×[(325÷13)-5]÷19=
=57×(25-5)÷19=
=57×20÷19=
=1140÷19=
=60