①+2÷9
②
③+()
④﹣()
⑤※
⑥※﹣()
①
③
④
②7÷8-0.75+
③6.25×10.1-62.5
④+1.22-+0.78
②36×()
⑤3.24×0.76+3.24×0.24
⑥
①1.25×3.2×2.5
②×[0.75﹣()]
③×()
④2022×
⑤55×102+646÷38