Question

i) 18 -3.(-7) + 9.(-4) - 20 =
j) (+5).(+11) - 37 - (-2).(+14) =

! URGENTEEEE !​

Answer 1

Explicação passo-a-passo:

i) 18 -3.(-7) + 9.(-4) - 20 =

18+21-36-20

39-36-20

3-20=-17

j) (+5).(+11) - 37 - (-2).(+14) =

55-37-(-28)

55-37+28

18+28=46