Calculati
[1900-( 2400:8-324:2)+17]x28=
8x97-{1000-[15x3-(12+7x3)]x(21-9x2)}=
{9x5+6x6x[9-4x(6x3-2x8)}-49}+236x197=
560+(236+164):10-(12+24+11)x10-10=
9+3x[6-2x(12-2x5)]=
1x9+{7x[6-(4+2x3):5]-8}:10-10=
29x347+2x{14-3x[(19-3x5):2]}:8=
4x{6+3x[18:3-3x(12:3-3)]}=
100000-{[2479+(3x5-13):2]x3+8:4}x2+564:2+7689:3=