Question

4. Elemine os parênteses e cacule.
a) +(+7)-(+2) =
b) (4)+(8)=
0) (-39)+(-92) =
g)(-51 ) - ( +46 ) =
h) -(-29)+(-32) =
c) +18) -(-61) =
d) { +23)+(-29 ) =
1) { +16 ) - (-72)=
D(-28) + ( +61 ) =
e) (-27)-( +32) =​

Answer 1

a) +7 -2 = +5
b) 4 + 8 = +12
0) -39 -92 = -131
g) -51 -46 = -97
h) +29 - 32 = -3
c) +18 +61 = +79
d) +23 -29 = -3
1) +16 + 72 = +88
D) -28 +61 = +33
e) -27 -32 = -59