Question

Me ajudemmm, pfvvv!!

Answer 1

a) - ( - 10 ) = +10

b) + ( - 11 ) = -11

c) + ( - 5 ) = -5

d) - ( - 19 ) = +19

e) - ( + 6 ) = -6

f) - ( - 21 ) = + 21

g) + ( + 41 ) = +41

h) + ( + 18 ) = +18