705-296×2
$$705 - 296 \times 2 = 705 - 592 = 113$$(705 - 296)・2
$$(705 - 296) \times 2 = 409 \times 2 = 818$$(365+175):5
$$(365+175):5 = 540 : 5 = 108$$365+ 175:5
$$365 + 175:5 = 365 + 35 = 400$$(904-268): 4
$$(904 - 268) : 4 = 636 : 4 = 159$$904-268:4
$$904 - 268 : 4 = 904 - 67 = 837$$