430000=万 13600000=万
7800000000=亿 51600000000=亿
① -( - )-
②875-375÷25
③12.5×32×0.25
④48×75%+53× -0.75
⑤
①367+33=
②9﹣5.2=
③0.6×0.2=
④﹣=
⑤÷=