0.19÷0.25÷0.8
32÷(9.68-9.52)
7.16×9.73+9.73×2.84
48﹣2.3×12
0.25×6.47×40
7.28+32÷0.25
1.25×0.68×0.8
18.42-4.59-5.41
1.25×16×2.5
①1.25×3.2×2.5
②×[0.75﹣()]
③×()
④2022×
⑤55×102+646÷38