472 + 524 x 3 - 223 x 7 =483
=472 +1572 -1561=
=2044 -1561=
=483
2 x ( 55 + 432 x 44 - 55 )=38016
=2 x ( 55 + 19008-55 )=
=2 x (19063- 55 )=
=2 x 19008=
=38016
74 + [ 23 x 55 + ( 1299 - 27 x 33 ) x 66 ]=28267
=74 + [23 x 55 + (1299 -891 ) x 66 ]=
=74 + ( 23 x 55 +408 x 66 )=
=74 + (1265 + 26928 )=
=74 +28193=
=28267