jawab b dan c sama caranya ya minta tolong

Bagian B:
1.(-28+33)+65=-28+(33+65)=-28+98=70
2.(-429+744)+1.535=-429+(744+1.535)=-419+ 2279=1.850
3.(-25×8)×100=-25×(8×100)=-25×800=-20.000
4.(40×39)×(-12)=40×(39×(-12))=40×-468=-18.720
5.(82×73)×(-15)=82×(73×(-15))=82×-(1.095)=
-89.970

Bagian C:
1.4×(76+63)=(4×76)+(4×63)=304+252=356
2.-12×(94-62)=((-12)×94)-((-12)×62)=-1.128-(-744)= -1.128+744=-384
3.16×(-25+100)=(16×(-25))+(16×100)=400+1.600= 2.000
4.-51×(-180-(-440))=((-51)×(-180))-((-51)×(-440))= 9.180-22.440=-13.260
5.64×(340+(-785))=(64×340)+(64×(-785))= 21.760+(-50.240)=-28.480