2,5jam+52menit-540detik=…. Menit

Sorry kalau salah…….

2,5 jam = 25/10 × 60 = 150 menit
52 menit. =. 52 menit
___________________________ +
= 202 menit
540 detik= 540 ÷ 60 = 9 menit
___________________________ –
= 193 menit