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② 370×[30 + 17×3 - (13×5 + 15)] - 19×18 = ​

Răspuns :

Răspuns:

370×[30+17×3-(13×5+15)]-19×18=

=370×[30 +51-(65+15)]-342

=370×(81-80)-342

=370×1-342

=370-342

28

Răspuns:

28

Explicație pas cu pas:

370×[30+17×3-(13×5+15)]-19×18=

370×[30+17×3-(65+15)]-19×18=

370×(30+17×3-80)-19×18=

370×(30+51-80)-19×18=

370×(81-80)-19×18=

370×1-19×18=

370-342=

28