Question

o 4) Calcule o valor das expressões a) (3+2)x(5-1)+4 = b) 82-8x7:(4-1x3) = c) 25-(10-(2x3+1)] = d) 70-[12+(5x2-1)+6] = e) 8:2+[15-(4x2+1)] = f) 9+[4+2x(6-4)+(2+5)]-8 = g) 50+{10-2x[(6+4:2)-(10-3)]} = h)180:{10+2x[20-45:(13-2x5)]} = alguém por favor ajude-me contar amada completa resposta​

Answer 1

Resposta:

a)24

b)26

c)22

d)49

e)10

f)16

g)58

h)9

Explicação:

a) (3+2)×(5-1)+4 =

5×4+4 =

20+4 =

24

b) 82-8×7÷(4-1×3) =

82-8×7÷(4-3) =

82-8×7÷1 =

82-56÷1 =

82-56 =

26

c) 25-(10-(2×3+1)] =

25-[10-(6+1)] =

25-[10-7] =

25-3 =

22

d) 70-[12+(5×2-1)+6] =

70-[12+(10-1)+6] =

70-[12+9+6] =

70-[15+6] =

70-21 =

49

e) 8÷2+[15-(4×2+1)] =

8÷2+[15-(8+1)] =

8÷2+[15-9] =

8÷2+6 =

4+6 =

10

f) 9+[4+2×(6-4)+(2+5)]-8

9+[4+2×2+7]-8 =

9+[4+4+7]-8 =

9+[8+7]-8 =

9+15-8 =

24-8 =

16

g) 50+{10-2×[(6+4÷2)-(10-3)]} =

50+{10-2×[(6+2)-(10-3)]} =

50+{10-2×[8-7]} =

50+{10-2×1]} =

50+{10-2} =

50+8 =

58

h) 180÷{10+2×[20-45÷(13-2×5)]} =

180÷{10+2×[20-45÷(13-10)]} =

180÷{10+2×[20-45÷3]} =

180÷{10+2×[20-15]} =

180÷{10+2×5} =

180÷{10+10} =

180÷20 =

9