9. 16× 1.5-0.5×9. 16
3.6-3.6×0.5
46×57+23×86
13.7×0.25-3.7÷4
2.22×9.9+6.66×6.7
0.85× 199
0.25×8.5×4
1.28×8.6+0.72×8.6
12.5×0.96×0.8
10.4-9.6×0.35