-3+(-6)= tulis garis bilangan

-3 + ( -6 ) = -3 - 6

··········· -6
.....<==============······ -3
····································<=======
________________________
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2
.......<====================
·············· -9

Jadi, -3 + ( -6 ) = -9