Question

Apenas essas eu tive dúvidas
e)15+[6+(8-4:2)] =

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)] =

5) Calcule o valor das expressões:

a) 16+[10-(18:3+2)+5] = b) 25-[12-(3x2+1)] =

c) 90-[25+(5x2-1)+3] =

d) 45+[(8x5-10:2)+(18:6-2)] =

e) 50-2x{7+8:2-[9-3x(5-4)]} =

Answer 1

Resposta:

4)

a)(3+2)x(5-1)+4=

5 x 4 +4= 24

b) 82-8x7:(4-1x3)=

82-56:1=26

c) 25-[10-(2x3+1)

25-10-7=8

d) 70-[12+(5x2-1)+6

70-12+9+6=73

e) 8:2+[15-(4x2+1)]

4+15-9=10

5)

a)16+[10-(10:3+12)+5]

16+10-18+5=13

b) 25-[12-(3x2+1)]

25-12-6+1=8

c) 90-[25+(5×2-1)+18:6-2

90-25+9+1=75

d)45+[(8x5-10:2)+(18:6-2)] =

45+40-5+1= 81

e)50-2x{7+8:2-[9-3x(5-4)]} =

50-2x11-9-3x1=16