Question

Efetue as operações.
a) ( - 15 ) - ( - 9 ) =
b) ( + 12 ) - ( - 8 ) =
c) ( + 14 ) - ( + 21 ) =
d) ( - 18 ) - ( + 24 ) =
e) ( - 106 ) - ( - 32 ) =

Answer 1

a) -6
b)20
c)-7
d)-6
e)-74

Answer 2

a) -6
b) 20
c) -7
d) -42
e) -74