\(\left(-135\right).29-13.135+42.\left(-65\right)\\ =135.\left(-29\right)-13.135+42.\left(-65\right)\\ =135.\left(-29-13\right)+42.\left(-65\right)\\ =135.\left(-42\right)+\left(-42\right).65\\ =\left(-42\right).\left(135+65\right)\\ =\left(-42\right).200\\ =-8400\)
F = (-135). 29 - 13. 135 + 42. (-65).
F = (-135). (29 + 13) + 42. (-65).
F = (-135). 42 - 42. 65.
F = -42. (135 + 65).
F = -42. 200
F = -8400.
F=(-135).29-13.135+42.(-65)
F=(-135).29+13.(-135)+42.(-65)
F=-135.(13+29)+42.(-65)
F=-135.42+42.(-65)
F=42.(-135-65)
F=42.(-200)
F=-8400