Question

3) Efetue as operações:
d) ( + 78) - (+14) =
a) +23-26 =
b) -15 +27 =
e) (+56)-(+90) =
f)( +21) + (- 56) =
c) - 33 + 45 =​

Answer 1

d) 64
a) -3
b) 12
e) -34
f) -35
c) -12