Răspuns :
a) -7+3-10+2-1+5 = -8
b) +31-21-5+14+11-2 = +28
2.
a) -7+11 = + 4 ; (+4)+(+5) = +9
b) (-10)-(+2) = -12
-4 + (-12) = -16
Bafta !
b) +31-21-5+14+11-2 = +28
2.
a) -7+11 = + 4 ; (+4)+(+5) = +9
b) (-10)-(+2) = -12
-4 + (-12) = -16
Bafta !