Question

10. Resolva as seguintes expressões numéricas.​

Answer 1

Resposta:

a){[25+(9+4).2]÷3-1}÷4+3

{[25+13.2]÷3-1}÷4+3

{[25+26]÷3-1}÷4+3

{51÷3-1}÷4+3

16÷4+3

7

b){2+16÷(2.5-9).[3+4.(17+8)]+125}÷71

{2+16÷1.[3+4.25]+125}÷71

{2+16÷1.[3+100]+125}÷71

{2+16÷1.103+125}÷71

{2+16.103+125}÷71

{2+1648+125}÷71

1775÷71

25

Answer 2

Resposta:

a){[25+(9+4).2]÷3-1}÷4+3  {[25+13.2]÷3-1}÷4+3  {[25+26]÷3-1}÷4+3  {51÷3-1}÷4+3  16÷4+3=  7

b){2+16÷(2.5-9).[3+4.(17+8)]+125}÷71  {2+16÷1.[3+4.25]+125}÷71  {2+16÷1] [3+100]+125}÷71  {2+16÷1.103+125}÷71  {2+16.103+125}÷71  {2+1648+125}÷71  1775÷71 = 25