10. Resolva as seguintes expressões numéricas.

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
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