Question

a)4.(10+20+15+30)

b) (10.6+12.4+5.8)-40

c)[6.(3.4-2.5)-4]+3.(4-2)-(10:2)

d)67+{50.[70:(27+8)+18:2]+21}

calcule o valor das expressoes

a) (12+2.5)-8

b) 25-(15+6:3)

c) 25+[7+(8-4:2)]

d)60-[8+(10-2):2]

e)80-[22+(5.2-1)+6]

ajuda pfv​
preciso dos calculos e resultados pfv​

Answer 1

Resposta:Segue as contas abaixo na explicação

Explicação passo-a-passo:

Questão 1

a)4.(10+20+15+30)--->4.(75)--->300

b) (10.6+12.4+5.8)-40--->(60+48+40)-40--->148-40--->108

c)[6.(3.4-2.5)-4]+3.(4-2)-(10:2)-->[6.(12-10)-4]+3.2-5-->[6.2-4]+6-5-->[12-4]+1-->8+1--->9

d)67+{50.[70:(27+8)+18:2]+21}--->67+{[70:35+9]+21}--->67+{[2+9]+21}--->67+{11+21}--->67+32--->99

Questão 2

a) (12+2.5)-8-->(12+10)-8--->22-8--->14

b) 25-(15+6:3)-->25-(15+2)--->25-17--->8

c) 25+[7+(8-4:2)]-->25+[7+(8-2)]-->25+[7+6]--->25+13--->38

d)60-[8+(10-2):2]-->60-[8+8:2]--->60-[8+4]--->60-12--->48

e)80-[22+(5.2-1)+6]--->80-[22+(10-1)+6]--->80-[22+9+6]--->80-37--->43