Răspuns:
a) 2-(4-6) =2+2 =4
b) -1-(5-6) = -1+1. =0
c) 10-( -8-9) = 10- 17 = -7
d) 6-(8+11) =6-19. = 13
e) -12 -( -14-6) = -12 -20 =32
f) - 11 - (4 + 19) = - 11 - 23 = 34
g) 12 - ( - 27 - 5) = 12 + 32 = 44
h) - 6 - ( - 3 + 15) = - 6 - 12 = 18
i) 0 - ( - 5 - 25) = 0 - 30 = 30
