Question

calcule o valor das expressões:
a) 50 -[22+(6 x 2 - ) +3]=

b)16:2+[12-(3x3-1)]=

c)(7x6+8):(28-7x3)=

d)30+[6x(5+2) - (9x3)]=

e)5x[10+(24:3-5)]=

f)120:[3x15+(2x7+1]=

Answer 1

Explicação passo-a-passo:

a) 50 -[22+(6 x 2 - ) +3]=

50 -[22+(12- ) +3]

50 -[34 -3]=

50 -31

19

b)16:2+[12-(3x3-1)]=

8+[12-(9-1)]=

8+[12- 8]=

8 + 4

12

c)(7x6+8):(28-7x3)=

(42+8):(28-21)=

50:7

d)30+[6x(5+2) - (9x3)]=

30+[6x(7) - (27)]

30+[42- 27]

30 + 15

45

e)5x[10+(24:3-5)]=

5x[10+(8-5)]=

5x[10+3]=

5 x 13

65

f)120:[3x15+(2x7+1]=

120:[45+(14+1]=

120: [45 + 15]

120 : 60

2