Question

Calcule o valor das expressões:

A)(12+2•5)-8
B) 25-(15+6:3)
C)25+[7+(10-2):2]
D) 60-[8+(10-2):2]
E)80-[22+(5•2-1)+6]
F)14:2+[13-(4•2+1)]

Answer 1

A) (12 + 2 • 5) - 8  =

(12 + 10) - 8  =

22 - 8  =

14

B) 25 - (15 + 6 : 3)  =

25 - (15 + 2)  =

25 - (+17)  =

25 - 17  =

8

C) 25 + [7 + (10 - 2) : 2]  =

25 + [7 + 8 : 2]  =

25 + [7 + 4]  =

25 +[+11] =

25 +11 =

36

D) 60 - [8 + (10 - 2) : 2]  =

60 - [8 + 8 : 2]  =

60 - [8 + 4]  =

60 - [+12]  =

60 - 12 =

48

E)80 - [22 + (5 • 2 - 1) + 6]  =

80 - [22 + (10 - 1) + 6]  =

80 - [22 + (+9) + 6]  =

80 - [22 +9 + 6]  =

80 - [+37]  =

80 - 37  =

43

F)14 : 2 + [13 - ( 4 • 2 + 1) ] =

7 + [13 - ( 8 + 1) ] =

7 + [13 - (+9) ] =

7 + [13 - 9 ] =

7 + [+4 ] =

7 + 4 =

11