77.(-7)-33.7-10.(-7)
=77.(-7)-(-33).(-7)-10.(-7)
=(-7).[77-(-33)-10]
=(-7).(77+33-10)=(-7).100=-700
77 . ( - 7 ) - 33 . 7 - 10 . ( - 7 )
=-539- 33 . 7 - 10 . ( - 7 )
=-539-231 - 10 . ( - 7 )
=-539-231 - (-70)
=-539-231 +70
=-770+70
=-700
77 . ( - 7 ) - 33 . 7 - 10 . ( - 7 )
=-539-33.7-10.(-7)
=-539-231-10.(-7)
=-539-231-(-70)
=-539-231+70
=-770+70
=-700