f) [(136×4+56×6)×5-2552]:(900-3×293)
=[(544+336)×5-2552]:(900-879)
=(880×5-2552):21
=(4400-2552):21
=1848:21
=88
g) 900-[(648:4+350:5):2]×3
=900-[(162+70):2]×3
=900-(232:2)×3
=900-116×3
=900-348
=552
h) 95-[25:(45:9)+(36:9×3-6)]+786:6
=95-[25:5+(4×3-6)]+786:6
=95-[25:5+(12-6)]+786:6
=95-(5+6)+131
=95-11+131
=84+131
=215
i) [84+(630:6×4)-(312:8×2)-298]:(8×864:108)
=[84+(105×4)-(39×2)-298]:(6912:108)
=(84+420-78-298):64
=(504-78-298):64
=(426-298):64
=128:64
=2
j) 314-2×[(16+15)-(83-79)]
=314-2×(31-4)
=314-2×26
=314-52
=262
k) 9×(101×1+111:1)-[85-7×(36:9+63:9)]
=9×(101+111)-[85-7×(4+7)]
=9×212-(85-7×11)
=9×212-(85-77)
=9×212-8
=1908-8
=1900
l) 324:[108:(21+54:9×5:30+45:9)]+19
=324:[108:(21+6×5:30+5)]+19
=324:[108:(21+30:30+5)]+19
=324:[108:(21+1+5)]+19
=324:[108:(22+5)]+19
=324:(108:27)+19
=324:4+19
=81+19
=100
m) 101-300:[24-21:(42-18:3-180:12)+196:28]
=101-300:[24-21:(42-6-15)+196:28]
=101-300:[24-21:(36-15)+196:28]
=101-300:(24-21:21+196:28)
=101-300:(24-1+7)
=101-300:(23+7)
=101-300:30
=101-10
=91
