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