tolong kerjakan plisss

1.2.144-1.230+312-510
=716 (c)
2.144:6×3:2
=24×3:2
=36(d)
3.561+(-87)-617
=474-617
=-143(d)
4.-96:(-4)×6:(-2)
=24×6:(-2)
=-72(a)
5.kurang tau.

Semoga membantu..