0.5×1.6+0.5×26.4 7.16﹣(3.5﹣3.84) (0.125×8﹣0.5)÷0.25
﹣(+) 999×778+333×666 (13×0.58﹣4.87+0.42×13﹣5.13)×4.25.
0.5×1.6+0.5×26.4 7.16﹣(3.5﹣3.84) (0.125×8﹣0.5)÷0.25
﹣(+) 999×778+333×666 (13×0.58﹣4.87+0.42×13﹣5.13)×4.25.