Question

1- Resolva (dica: faça primeiro as multiplicaçẽos ou/e as divisões):

a) ( +12) . ( -5) + ( -12) . ( +2) =

b) ( -2) . ( -7) + ( +8) . ( -6) =

c) ( -12) : ( -6) - ( +13) . ( +3) =

d) (+15) : ( -5) - ( -8) . ( +5) =

e) ( -4) . ( -7) - ( -10) : ( +2) =

f) (+6) . ( -9) + ( -22) : ( +11) =

g) ( +20) : ( -10) + ( -36) : ( -3) =

h) ( -25) : ( +5) - ( -28) : ( +7) =

Answer 1

Explicação passo-a-passo:

Espero ter ajudado ,boa osrte bwiz