Question

45 + 27 – [ ( 2.10 – 8:2 ) + ( 7 – 3) – 3 ] – 4


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Answer 1

Resposta:

51

Explicação passo-a-passo:

45+27-[(2.10-8:2)+(7-3)-3]-4

45+27-[(2.10-4)+(7-3)-3]-4

45+27-[(20-4)+(7-3)-3]-4

45+27-[16+(7-3)-3]-4

45+27-[16+4-3]-4

45+27-[20-3]-4

45+27-17-4

72-17-4

55-4

51