Question

Calcule (+27)+(+13)+(-28)= * 2 pontos 8) Calcule (-9)²x (+5)-(+16)= *

Answer 1

7) (+27) + (+13) + (-28)

27 + 13 - 28

40 - 28

12

8) (-9)² × (+5) - (+16)

9² × 5 - 16

81 × 5 - 16

405 - 16

389